[On this vast land] "The heavy weapon of the country" helps the nation to stand up to the backbone

[On this vast land ⑯]

Sun Changsong, not easy.

His pressure is from 9 roads, 4 railways and gas pipelines, high -voltage electric towers from "top of the head" ... not unique, and ensure that the 5 -story, 150 -meter -long, 4,300 tons weight in front of you must The behemoth is not bad.

This face is like a behemoth with Peking Opera Facebook, named "Jinghua" shield machine. At this moment, it is excavated more than 20 meters under the ground 6 underground.

As its "housekeeper" -the China Railway 14th Bureau Beijing East Sixth Ring Reconstruction Project Shield Manager, Sun Changsong is responsible for the construction management of the entire shield. Before Rongsheng's "steward", he had drove two shields, but he was all imported.

The "Jinghua" is a genuine Chinese goods!

Wang Huran is an apprentice of Sun Changsong. In 14 months, he opened the "Jinghua" and crossed the risk points of Beijing City, the largest underground comprehensive transportation hub in Beijing, and Asia. Hi "ah -go all the way forward, 4.7 kilometers, and the stratum sinking does not exceed 3 mm! "My master always said to me, saying that 40 years ago, the 3.3 kilometers of the Southern Xinjiang Railway Tunnel used nearly 4,000 people and took 5 years before using steel, hammer, and wind guns to cut out!" Wang Huran Ran Sighing that he was born at the time.

When it comes to the past, Sun Changsong had a different taste in his heart: "In the past, using imported shield machines, maintenance is very troublesome. Importing a part is often one month, and it is very expensive. If you want to design the drawing , Do not allow us to approach. "Speaking of this, he raised his eyebrows and exhaled:" We don't have to be subject to people anymore. The production and sales of domestic shield machines have ranked first in the world and exported to Europe. "

In fact, in the past ten years, let us be angry with our brows! You see, a large number of "heavy weapons of the country" debut: Shenzhou 14 spacecraft, Long March 5 rocket, China Space Station ...

At the same time as Sun Changsong and Wang Huran's "遁 遁", astronauts Chen Dong and Liu Yang had just completed a space walk; "Tiangong", the core cabin of the China Space Station, was waiting for the "big guy" named "Dream Tian"; and in Shanghai On the banks of the Huangpu River, the large passenger aircraft C919 was pulled straight into the clouds; on the Haizi Mountain at 4,410 meters of the Qinghai -Tibet Plateau, the "big net" of the high altitude cosmic line observation station was holding the cosmic rays.

Where is this calculation: South, Fujian Fuqing, my country's independently designed and developed three -generation nuclear power technology- "Hualong No. 1" unit, one can meet the electricity demand for one year in a medium -sized city; north, Bingcheng Harbin, not afraid The cold -cold version of the "Fuxing" EMU can be galloped at minus 40 degrees Celsius ...

There are heavy weapons! It represents the ambitions, bones and confidence of a country.

It provides an indispensable platform for scientific research. With the help of "China Sky Eyes", we have found more than 660 pulse stars that have never been seen before. With these new samples of the universe, scientists are trying to achieve major breakthroughs in astronomy, physics and other fields. With the "super microscope" of Sanzhiyuan, we can "see" the micro -structure of the substance and develop super steel and quantum materials.

It is not only the "good helper" of scientists, but also installs "wings" for the industry.

Let's look at a set of data: 22 provinces, more than 200 enterprises, 36 universities, and nearly 200,000 people. This is a group participating in the research and manufacturing of large aircraft. They solved a series of technical problems such as aircraft engine integrated design, electrical flight control system control law, comprehensive avionics, titanium alloy 3D printing, etc., which brought cluster breakthroughs of more than 6,000 civil aircraft technology in my country, and created a system. Complete aviation innovation chain and industrial chain. "The development of the C919 large aircraft is not just an aircraft itself. It can drive the development of a series of industries such as materials, equipment manufacturing, electronic systems, and information." Essence

It's not just a big plane. From Beidou satellite navigation to "Beidou+" and "Beidou Academy"; from "Chang'e" to the lunar exploration to "Tianwen" to explore the fire, and then to "羲" ... It is a breakthrough and progress of science, technology, technology and other issues, as well as the experience and growth of millions of tech talents.

With the technology background of the "National Heavy Instrument", we have a lot of "bright colors" in our daily life: medical heavy ion accelerator precisely kill cancer cells; plant factory breeding accelerators can harvest a stubble in 60 days Rice; UHV transmission technology is a "highway" for transmitting power shops across regions; with the "scissors" of gene editing technology, we can "repair and supplement" genes and develop genes and genetic diseases ... Mowing

"In the past ten years, my country's scientific and technological undertakings have undergone major changes in historic, overallness, and pattern. They have successfully entered the ranks of innovative countries, and have gone out of a development path from strong talents, strong technology, and strong industrial, economic, and national strong development. "The Minister of Science and Technology Wang Zhigang said.

(Reporter Chen Haibo)

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