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04

2022-11

Hot Comments: Rules and Red Lines for the Protection of the Yellow River

Hot Comments: Rules and Red Lines for the Protection of the Yellow River "The Yellow River is peaceful, and the world is peaceful." On October 30, the 37th meeting of the Standing Committee of the 13th National People's Congress voted to pass the "the People's Republic of China Yellow River Protection Law", which will come into effect on April 1, 2023. Following the Yangtze River Protection Law, China's river basin protection has added landmark legislation, which provides a strong guarantee for promoting ecological protection and high-quality development of the Yellow River Basin on the track of the rule of law. "The 'wide riverbed' at the mouth of the sea, now there are only thin and weak streams..." This is a thought-provoking text written by the media when they conducted an interview and report on "Walking the Yellow River" in 1999. From 1972 to 1999, the main stream of the lower Yellow River was cut off for 22 years in 28 years. At its worst, the length from the mouth of the sea is 704 kilometers. The river ecosystem was on the verge of collapse, the wetland area shrank, and the production and life of the people were affected. The protection and governance of the Yellow River is a major event in governing the country, and it is also a major plan related to the great rejuvenation and sustainable development of the Chinese nation. Worry about the disease of the Yellow River and focus on the treatment of the Yellow River. Qinghai Sanjiang source to protect the "China Water Tower", Gansu to promote the integration of mountains, rivers, forests, fields, lakes, grass and sand protection and restoration projects, Ningxia to build the Yellow River basin ecological protection and high-quality development of the pioneering area, Shandong to protect the Yellow River estuary wetland ecological environment ...... Since the 18th CPC National Congress, we have raised the Yellow River basin ecological protection and high-quality development as a national strategy, building the Yellow River protection and management "four beams and eight pillars", remarkable results have been achieved in the control of water and sediment in the Yellow River Basin, the ecological environment has continued to improve significantly, and the level of development has been continuously improved. More than 20 years later, people walking the Yellow River will find that the most beautiful thing in the Yellow River is ecology, and the most confident thing is to solve high-quality development along the river. In view of the difficult and painful points that have plagued the Yellow River Anlan for a long time, the Yellow River Protection Law has not only a systematic concept of overall planning, but also targeted measures for precise policy implementation. For example, according to the different requirements of different regions, targeted provisions are made to maintain the natural state of rivers and lakes, ecological restoration projects, sand prevention and control, soil erosion prevention and control, comprehensive management of small watersheds, whole ditch management, warping dam construction, ecological water replenishment and other institutional measures; for example, in order to break the situation of "Jiulong water control", it is clear that the state should establish an overall coordination mechanism for ecological protection and high-quality development of the Yellow River Basin, proposed the establishment of the Yellow River Basin inter-provincial river and lake chief joint meeting system, and so on. Only by strengthening the systematicness, integrity, coordination and timeliness of the legal system for the protection of the Yellow River, adhering to a game of chess in the whole basin, and setting rules and drawing red lines for "what to protect" and "what to develop" in the Yellow River Basin, can we better promote green development and promote the harmonious coexistence of man and nature. The river rushes, nine songs in a chain. The formulation and promulgation of the Yellow River Protection Law is a new milestone in the protection and management of the Yellow River. Whether the legal system can improve the governance efficiency and development potential depends on strong implementation. Taking the Yellow River Protection Law as an opportunity, we will jointly do a good job in the protection of the Yellow River, coordinate the promotion of the great governance, draw a blueprint to the end, one crop after another, and run one stick after another. We will definitely make the Mother River a happy river that benefits the people.

2022-11-04

04

2022-11

Method of polishing and grinding

Method of polishing grinding: Grinding is the grinding tool (hereinafter referred to as the grinding tool) surface embedded abrasive or coated abrasive and add lubricant, under certain pressure, the tool and the grinding tool contact and do relative movement, through the abrasive action, from the workpiece surface cut a layer of very thin chip, so that the workpiece has a precise size, accurate geometry and high surface roughness. Its essence is to use free abrasive particles to carry out micro-cutting including physical and chemical comprehensive effects on the surface of the workpiece through the grinding tool. Features:(1) In mechanical grinding, the machine tool-tool-workpiece system is in an elastic floating state. (2) The workpiece to be ground is not subject to any force and is therefore in a free state. (3) The speed of the grinding movement is usually below 30 m/min, which is about 1% of the grinding speed. (4) When grinding, only a very thin layer of material can be cut off, so the heat generated is less, the processing deformation is small, and the surface deterioration layer is also thin. (5) There is residual compressive stress on the grinding surface, which is beneficial to improve the fatigue strength of the workpiece surface. (6) The operation is simple and generally does not require complicated and expensive equipment. (7) Adaptability is good. (8) grinding can obtain very low surface roughness. 1. Fluid polishing Fluid polishing is to rely on high-speed flow of liquid and abrasive particles to wash the surface of the workpiece to achieve the purpose of polishing. Commonly used methods are: abrasive jet processing, liquid jet processing, fluid power grinding. Fluid power grinding is driven by hydraulic pressure, The liquid medium carrying the abrasive particles is caused to flow back and forth at high speed over the surface of the workpiece. The medium mainly uses special compounds with good flowability at lower pressure. (polymer-like substance) and mixed with abrasive, abrasive can be used silicon carbide powder. 2. Mechanical polishing Mechanical polishing is a method of polishing a smooth surface by cutting and plastic deformation of the surface of the material to remove the convex part after polishing, Generally use oilstone, wool wheel, sandpaper, etc., mainly manual operation, special parts such as the surface of the rotary body, Auxiliary tools such as turntables can be used, and the method of super-lapping can be used for high surface quality requirements. Super lapping is a special abrasive tool, In the polishing liquid containing abrasives, it is tightly pressed on the surface of the workpiece to be processed for high-speed rotating motion. Using this technology, the surface roughness of Ra0.008 μm can be achieved, which is the highest among various polishing methods. Optical lens molds often use this method. 3. Ultrasonic polishing The workpiece is placed in the abrasive suspension and placed together in the ultrasonic field, relying on the oscillation of the ultrasonic, The abrasive is ground and polished on the surface of the workpiece. Ultrasonic machining macro force is small, will not cause deformation of the workpiece, but tooling production and installation is difficult. Ultrasonic machining can be combined with chemical or electrochemical methods. On the basis of solution corrosion and electrolysis, ultrasonic vibration is applied to stir the solution, The dissolution products on the surface of the workpiece are separated, and the corrosion or electrolyte near the surface is uniform; Ultrasonic cavitation in the liquid can also inhibit the corrosion process, conducive to surface brightening. 4. Electrolytic polishing The basic principle of electrolytic polishing is the same as chemical polishing, that is, by selectively dissolving the small protruding parts of the surface of the material, Make the surface smooth. Compared with chemical polishing, the effect of cathode reaction can be eliminated, and the effect is better. The electrochemical polishing process is divided into two steps: (1) Macroscopic leveling dissolution products diffuse into the electrolyte, and the geometric roughness of the material surface decreases, Ra> 1μm. (2) micro light level anode polarization, surface brightness, Ra <1μm. 5. Fluid polishing Fluid polishing is to rely on high-speed flow of liquid and abrasive particles to wash the surface of the workpiece to achieve the purpose of polishing. Commonly used methods are: abrasive jet processing, liquid jet processing, fluid power grinding. Fluid power grinding is driven by hydraulic pressure, The liquid medium carrying the abrasive particles is caused to flow back and forth at high speed over the surface of the workpiece. The medium is mainly made of special compounds (polymer-like substances) with good flowability at lower pressure and mixed with abrasives, The abrasive may use silicon carbide powder. 6. Chemical polishing Chemical polishing is to make the surface of the material in the chemical medium micro convex part of the concave part of the preferential dissolution, A smooth surface is thus obtained. The main advantage of this method is that it does not require complex equipment and can polish workpieces with complex shapes, Many workpieces can be polished at the same time with high efficiency. The core problem of chemical polishing is the preparation of polishing solution. Surface roughness obtained by chemical polishing Generally, it is several 10 μm. 7. Magnetic grinding and polishing Magnetic grinding and polishing is the use of magnetic abrasive under the action of a magnetic field to form an abrasive brush to grind the workpiece. This method has high processing efficiency, Good quality, easy control of processing conditions, good working conditions. With suitable abrasives, the surface roughness can reach Ra0.1 μm. The polishing in plastic mold processing is very different from the surface polishing required in other industries, Strictly speaking, the polishing of the mold should be called mirror processing. It not only has the very high request to the polishing itself but also to the surface flatness, There are also high standards for smoothness and geometric accuracy. Surface polishing is generally only required to obtain a bright surface. The standard of mirror processing is divided into four levels: AO = Ra0.008μm, A1 = Ra0.016μm, A3 = Ra0.032μm, A4 = Ra0.063 μm, due to electrolytic polishing, fluid polishing and other methods are difficult to accurately control the geometric accuracy of the part, The surface quality of chemical polishing, ultrasonic polishing, magnetic grinding polishing and other methods can not meet the requirements, so the mirror processing of precision molds Or mainly mechanical polishing.

2022-11-04

04

2022-11

Buy electric sweeper should pay attention to what?

Electric sweepers can be used in factory workshops, factory outskirts and back streets and alleys. When purchasing, they should be comprehensively considered from the perspectives of use functions, technical parameters, quality, price, brand services, etc. When cleaning customers buy electric sweeper, they generally need to know the following: 1. Approximate area to be cleaned in the scope of operation: Answer: Select the machine corresponding to the work efficiency according to the area. Factory customers: Generally, those with special cleaning personnel can choose those with lower efficiency. Those without special cleaning personnel should be controlled to finish cleaning in 1-2 hours. Municipal sanitation customers: special personnel work regularly, according to the scope of work area, working hours, reverse the work efficiency requirements of the equipment, to meet the shift operation. 2, cleaning the ground environment: whether there is a ramp, what material of the road surface (hard cement, asphalt asphalt floor, epoxy floor, floor tile marble, etc.) Answer: Hard cement ground, asphalt ground, can choose electric sweeper; Epoxy floor, floor tile marble, can choose electric washing machine. If there is a special ramp, you should pay attention to the driving mode of the machine, the power of the driving motor, and choose the sweeper from a big brand manufacturer, so that you can get a good guarantee in terms of quality assurance. The Jiangsu manufacturer that focuses on the production of sweeping vehicles in China is Nantong Mingnuo, and its reputation in the industry is still acceptable. You can learn about the credit of enterprises and the cases of enterprise customers on the Internet for reference. 3. What is the passing width of the cleaning section, which is related to the problem of machine passing, Answer: When it is to be used for cleaning in the workshop, special attention should be paid to the width and height of the workshop aisle. The side brush of the sweeper should be equipped with an automatic anti-collision patent, which is convenient to pass through narrow sections and will not damage the machine. 4. What kinds of garbage are there to be cleaned? What is the expected cleaning effect? There will be industrial dust in the production process of some factories, such as metal chips, sawdust, flour, chemical powder, etc. Answer: The functions of the sweeper are a combination of sweeping, vacuuming, and water spraying, but different configurations and different brands of technology have different long-term cleaning effects and service life. Therefore, if it is a factory with relatively poor working conditions, long-term cleaning should give priority to the purchase of manufacturers with good technical brand strength.

2022-11-04

04

2022-11

Working principle of milling machine

Pavement milling machine is one of the main types of asphalt pavement maintenance and construction machinery. One of the main equipment for asphalt concrete pavement maintenance and construction is mainly used for the excavation and renovation of asphalt concrete surface layers such as highways, urban roads, airports, freight yards, etc. It can also be used to remove defects such as pavement embossment, oil waves, mesh patterns, rutting, etc. It can also be used to excavate potholes and grooves on the pavement, and milling of cement pavement. Milling the damaged old pavement with a road milling machine, and then laying a new surface layer is one of the most economical modern maintenance methods. Because of its high efficiency, simple construction process, easy control of milling depth, convenient and flexible operation, good mobility, milling of old materials can be directly recycled, etc., it is widely used in urban municipal roads and highway maintenance projects. Main structure and working principle The general milling machine is composed of engine, frame, milling rotor, milling depth adjustment device, hydraulic components, aggregate conveying device, steering system and braking system. The milling rotor is the main working part of the milling machine. It is composed of the milling rotor shaft, the cutter seat and the cutter head. It directly contacts with the road and achieves the purpose of milling through its high-speed rotating milling cutter. The milling machine is equipped with an automatic leveling device, which uses the side cover of the milling rotor as the milling reference surface and controls two positioning hydraulic cylinders to keep the given milling depth constant; Its hydraulic system is used to drive the milling rotor to rotate, the whole machine to walk, auxiliary device work, etc. It is generally a closed hydraulic system with multiple pumps independent of each other, which does not interfere with each other and has high reliability when working. Some milling machines are equipped with inclination adjusters as required to control the inclination of the rotor. Generally, large milling machines have an aggregate conveying device composed of a conveyor belt and a collector, which can concentrate and transfer the milled bulk material to a random walking vehicle. The height of the conveying arm can be adjusted and can swing left and right to adjust the unloading position. When the specifications and models of the milling machine are different, their structure and layout are slightly different, but the basic working principle is the same or similar. The route of power transmission of milling machine: engine → hydraulic pump → hydraulic motor, hydraulic cylinder → working device.

2022-11-04

04

2022-11

Epoxy floor paint long-term preservation tips

Features of epoxy floor paint: The composition of epoxy floor paint is composed of some diluents, additives and so on. It is a more flammable material. At the same time in the volatile vapor, the human body and epoxy will cause a double damage. So if you want to save the epoxy floor paint, first of all, you have to store the paint must be stored in a dry, cool and ventilated environment, but also to prevent a hot sun exposure, and to prevent its close to the fire. And need to pay attention to the preservation of an ambient temperature, in general, the storage temperature needs to be maintained in a range of 15-25 degrees Celsius, and its relative humidity needs to be maintained in a range of 50% to 70%, and the need for regular ventilation, and the storage of the ground is generally the best cement or stone ground, if your epoxy floor paint is the need for long-term storage, then it is necessary to put on the essential horizontal bar and empty the barrel, which is also to prevent the bottom of the barrel from getting damp and rusting and perforating. Moreover, it should be noted that the coating barrel cannot have more than three layers. If the paint or diluent in the open barrel, they can not be piled up in the open paint barrel, and used cotton yarn, waste, etc. are not discarded in the warehouse, and some paint empty barrels like this It is best to concentrate on some well-ventilated places. If you need epoxy floor grinding machine, please call 13925069066 or go to Qing Qin Yu's website.

2022-11-04

03

2022-11

Future Development Trend of Highway Construction Industry Prospects Analysis of Highway Construction Industry in 2022

Future Development Trend of Highway Construction Industry Prospects Analysis of Highway Construction Industry in 2022 ZouJunRong 4 August 2022 Source: Internet 82550 Traditional At present, China's highway network has been basically formed, but there are still outstanding problems such as insufficient total amount and structural contradictions. According to the "National Highway Network Plan", by 2030, there are still 26000 kilometers of national expressways to be built, and 100000 kilometers of ordinary national and provincial trunk roads need to be upgraded. How about the highway construction development plan and the highway construction development center? At present, China's highway network has been basically formed, but there are still outstanding problems such as insufficient total amount and structural contradictions. According to the "National Highway Network Plan", by 2030, there are still 26000 kilometers of national expressways to be built, and 100000 kilometers of ordinary national and provincial trunk roads need to be upgraded. Development Prospect and Market Planning Analysis of Highway Construction Industry in 2022 Highway construction refers to the general term of highway network planning, highway survey and design, highway construction, maintenance and management. The scale of a country's highway construction is determined according to the role of highway transportation in the comprehensive transportation system, according to its political, economic, cultural, tourism and other aspects of importance, combined with geographical and environmental conditions. China's highway construction is defined by the State Planning Commission, the State Economic Commission and the Ministry of Communications, and each province, city and autonomous region formulates its own highway network planning (provincial roads, county roads and township roads) in accordance with the overall national planning and layout and in combination with the economic development of the region. The Ministry of Communications and the highway departments of each province, city and autonomous region are responsible for the maintenance and management. At present, there are still more than 900 counties in the country that are not covered by national highways, and 18 new cities with a population of more than 200000 and 29 prefecture-level administrative centers have not been connected to national highways. According to the "Plan", ordinary national highways will be built for 8000 kilometers, upgraded for 100000 kilometers, and national highways will be built for 25000 to 33000 kilometers. In the future, the focus of the expressway network will gradually shift from the eastern coastal areas to the central and western regions, making "outstanding contributions" to the steady rise of GDP ". At the end of 2018, the national highway mileage reached 142600 kilometers, an increase of 8200 kilometers from the end of 2017. In recent years, my country's highway mileage has maintained a state of continuous growth, and it is still expected to continue this growth momentum during the "13th Five-Year Plan" period. In 2020, the national highway mileage will reach 164300 kilometers. By the end of 2020, the total mileage of China's highway network is about 160000km, ranking first in the world. Among them, Guangdong topped the list with 10690 kilometers of expressways. In terms of high-speed kilometer mileage, the top 10 are Guangdong, Yunnan, Sichuan, Hebei, Guizhou, Shandong, Hubei, Henan, Inner Mongolia and Hunan. Compared with 2019, the change is relatively large, especially in Yunnan, which increases the speed by 4000 kilometers a year. Hunan has only increased more than 500 kilometers in a year, and highway construction is a bit lagging behind. In terms of highway density, the top ten provinces are Shanghai, Tianjin, Beijing, Guangdong, Fujian, Zhejiang, Shandong, Jiangsu, Guizhou and Henan. Generally speaking, it is still related to the degree of economic development. Data show that the average annual daily traffic volume of national highways in 2020 is 15889 vehicles, and the average annual daily traffic volume and average daily driving volume of highways in China are increasing, driving the growth of highway demand. It is estimated that by 2030, the demand for transportation and the traffic volume of main corridors may increase by 3-4 times. The 106000-kilometer ordinary national highway is obviously unable to support and adapt. The highway construction plan has carried out in-depth and detailed research on the construction of national highways, and proposed a basic highway network covering all counties in the country, which will provide a higher standard of basic transportation service for the society. According to the "National Highway Network Plan", by 2030, there are still 26000 kilometers of national expressways to be built, and 100000 kilometers of ordinary national and provincial trunk roads need to be upgraded. China's highway development is at a critical stage of accelerating the network, and highway construction can only be strengthened, not weakened. It is necessary to adhere to the principle of moderate advancement, make overall planning, step-by-step implementation, optimize structure, pay attention to quality, and give full play to the role of highway construction in supporting and guaranteeing economic development and investment, in order to stabilize growth, promote reform, adjust structure, benefit people's livelihood, and prevent Make a positive contribution to risk. At present, the downward pressure on the economy is great, and a moderate increase in investment in highway construction is also conducive to stable growth, promoting employment, digesting steel, cement and other production capacity, and speeding up the improvement of the road network structure. According to the "Plan", ordinary national highways will be built for 8000 kilometers, upgraded for 100000 kilometers, and national highways will be built for 25000 to 33000 kilometers. In the future, the focus of the expressway network will gradually shift from the eastern coastal areas to the central and western regions, making "outstanding contributions" to the steady rise of GDP ". The highway construction industry research report aims to start with the national economic and industrial development strategy, analyze the future policy trend of highway construction and the development trend of the regulatory system, tap the market potential of the highway construction industry, and provide in-depth research based on key market segments. A vivid description of market changes from multiple angles such as industrial scale, industrial structure, regional structure, market competition, and industrial profitability, and a clear development direction.

2022-11-03

03

2022-11

The astronaut behind the rocket's "nerve center"

The astronaut behind the rocket's "nerve center" On October 31, the Mengtian Experimental Module soared into the sky under the support of the Long March 5 B Yao 4 carrier rocket. As the "nerve center" of the Wenchang Space Launch Site, the rocket control system team played an important role. Wenchang Launch Site Space Station Construction Mission Promotional Card "Zero window" ignition can not tolerate the slightest error The rocket control system is known as the "nerve center" of the rocket. Its main function is to control the rocket to fly according to the predetermined trajectory and enter the orbit accurately. The control system team is responsible for the testing and launching of rocket instruments and equipment. Whether the performance and parameter status of these instruments and equipment are normal will directly affect the success or failure of the rocket's flight. Yu Peng, the task leader of the control system, told reporters: "the dream sky cabin and the core cabin can be accurately docked under the condition of high-speed movement, and the ignition time error should be controlled within 1 second. This puts forward extremely high requirements for the operation of our control system before ignition. All test operations should be rapid and accurate, and no mistakes should be allowed." In order to ensure the "zero window" ignition, Yin Jingbo, commander of the launch mission control system of the dream capsule, led the team to repeatedly refine the pre-launch process, making the pre-launch work accurate to minutes, minus 10 minutes or even seconds before launch, to ensure that every node and every operation before launch is precise and accurate. Yin Jingbo and Yu Peng discuss problems in the test hall Theory and practice must be closely integrated. Multi-round pre-launch process drills enable post personnel to master the timing of each password issuance and each operation content, and ensure that personnel can quickly interpret and feedback multiple 400 states and more than 2000 parameters. "Golden Finger" Liu Qijie Observed and Recorded Test Parameters What should I do if there is an accident? Deducting possible failures, they set more than 190 possible failure modes and formulated more than 410 disposal measures, all to ensure that the rocket can ignite on time. Ten years of carrying a heavy load, just to fly One minute on stage, ten years off stage. This ten-year foundation is the accumulation of this team by 1.1 points. At the beginning of the construction of Wenchang launch site, the control system learned the theoretical knowledge of the control system, the new signal rocket technology theory, and the debugging and installation equipment again and again under the condition of "one poor and two white" in the construction of software conditions. With the spirit of hard struggle, the control system laid the foundation with nearly one million words of operating procedures and supporting teaching materials. During the 908 days of carrying the load, the control system team quickly repacked and set off. Round after round of professional teaching, over and over again to improve the documents, over and over again to carry out exercises, independent design of circuit sand table, connector operation box, practice theory, practice operation, practice coordination, concentrate on foolproof preparation, with the ability of thick and thin hair, win the turnaround battle, honor battle, even if the long five-distance three tasks push again and again, it is difficult to stop their passion. On-site teaching of control system personnel using circuit sand table In the Spring Festival of 2020, the new crown epidemic raged and spread, nearly half of the post personnel can not return as scheduled, two first arrow missions in parallel, the epidemic brought inexplicable panic and other adverse factors in front of the control system. Yin Jingbo, commander of the control system, recalled: "At that time, he was the" golden finger "of the first flight mission of Long March 5 B and the arrow operator of Long March 7 A. As soon as he finished working on one side, he quickly moved to the other side to carry out tests. The technical status of the two missions was different. Our system was" double thinking "and test preparation very late every night, all in order to ensure that the daytime test preparation was almost" white plus black." March 2020 Changzheng No.7 A Star Arrow Combination Transition Site Slogan Liao Guorui, commander of Mengtian capsule launch mission 01, told reporters: "At that time, I was in charge of the control system task. I was moved by the hard work of the staff in the post and the dedication of many people who had been riveted in the post for nearly 90 days." Day and Core Module Mission Control System Pledge Mobilization This was the firm belief and concerted action of the control system team at that time. Through this process of overcoming the difficulties, the control system team's comprehensive test and hair ability has been significantly matured and improved, laying a solid foundation for the follow-up mission Lien Chan's winning streak. Road resistance and long, Yi Jian When it is difficult, it shows courage and perseverance, and when it is honed, it becomes jade. In 2021, after the Tianzhou-2 mission was suspended twice, the propellant was drained back and refilled twice. All the scientific and technical personnel of the test and development team shouted the battle slogan of "do whatever it takes for the mission, do not hesitate for the mission", and staged a mission relay that raced against time and competed with problems. The personnel of the control system always kept awake, maintained their concentration, stabilized their minds and feet, cooperated with all systems, worked together in the same boat, overcame the difficulties together, and finally wrote a new miracle of aerospace with success. Tianzhou 2 Control System Commander Zhang Bo The high-density mission in 2022 made time pass quickly. After the successful launch of the "Ask the Sky" module, it was too late to rest and put into the 90 days when the three missions of "Zhongxing", "Dream Sky Module" and "Tianzhou 5" were intertwined and parallel. For the young team, this "ultra-high density" had never been experienced before. It also coincided with the severe epidemic situation in Hainan, the adverse effects of personnel fatigue and static control, which once again tested them. The control system team deeply understood the "great significance and extraordinary mission" of the space station construction task, maintained the determination of "steady and steady", established the belief in victory, firmly dared to fight, overcome the pressure of continuous high-density tasks, overcome the impact of static control, and fought continuously and under pressure, fully demonstrating the excellent style of "taking responsibility before the war. Control System Technologists Participate in Mengtian Experimental Module Transfer Activities The control system personnel voluntarily gave up the rest to accompany their wives and children, riveted in their posts for nearly 30 days and worked overtime in order to master the test status and process more accurately. Sun Jing, head of the servo mechanism responsible for the two types of rockets, is in the lactation period. He takes care of the children and puts more energy into the task. Dou Tianheng, who is also the third post, Hao Jianjun, who postponed the wedding date, Wang Buhua's family with two children alone ...... and so on, each comrade is using action to explain the dedication of the small family to the overall situation. Check the test status of the post personnel on the control system arrow Although ordinary, unknown, but their cause is great. Although they were miserable and slept at night, they were happy with it. Although it is difficult and heavy to carry forward, they lift the weight lightly. All because the belief of "space power" and "space serving the country" has long been integrated into the blood, forming the "winning gene" for building a world-class space launch site and building a space power ". (The manuscript was jointly planned by Xinhua and Wenchang Space Launch Site) Responsible editor: You Yuan Yuan Yuan_1000

2022-11-03

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