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Looking at Chu Huifen's puzzled gaze, Liang Yuan grabbed his hair and said: "Aunt Chu also knows that the air conditioning fan was invented by me, I usually like to tinker with some strange things, a few days ago I was playing in the factory, and when I chatted with the railway experts in East Germany, I inadvertently put forward an idea, and after the discussion, the East German experts thought that it was very valuable for in-depth research, and the factory was built to set up a relevant research department." Later, Tongguò, an electronic engineer who graduated from MIT, learned that the research direction of these two people in the university was the same as the research department that the factory planned to establish, but we did not have acquaintances abroad, so we could only trouble Aunt Chu to find someone. ”

"Du Wei is a researcher of solid cigarettes, Sun Jizhou is a researcher of temperature difference power generation sheets, if Aunt Chu finds these two people, she can sue them, and she said that there is a company in China that is preparing to set up a real room for their major, and the round-trip expenses are paid by China, and I hope they can return to China to have a look. Liang Yuan explained.

Chu Huifen listened to Liang Yuan talk about two subjects that she had never heard of, and asked with some curiosity: "Xiaoyuan, what are these two things you are talking about, Aunt Chu has never heard of them?"

Solid smoke, also called aerogel, is also the world's least dense man-made substance, aerogel is known to human beings in the best thermal insulation effect, heat conduction, heat convection, heat radiation these three ways of heat transfer are basically ineffective on aerogel, put a fresh rose on a piece of 8 mm thick aerogel, the lower side with a flame can ensure that the rose is not damaged.

The thermoelectric generator is a kind of cube sheet made of semiconductors, with a thickness of 3-5 mm and a width of 10-80 mm. To put it simply, this kind of device is that when the temperature difference between the upper and lower sides of the semiconductor sheet exceeds 1 degree, the semiconductor device will emit a continuous current.

Liang Yuan gave a general introduction to the product characteristics of solid smoke and temperature difference generator sheet with Chu Huifen.

"These two people are experts in this area?" Chu Huifen asked, Liang Yuan shook his head and said: "Not yet, but they have both proposed new scientific research directions in related fields, and the engineer I know and Du Wei are alumni." In addition, he is also engaged in semiconductor work, and he knows something about Chu Jizhou, so he recommended these two people. ”

Du Wei later worked for NASA, where he developed a series of silicon-based and carbon-based aerogels. After the new century, Du Wei's research results were used by NASA in the Mars exploration program to provide thermal insulation for the equipment carried by the three Mars rovers of Spirit, Opportunity and Curiosity.

Later, Sun Jizhou worked in the U.S. Army Research Office, researching semiconductor materials suitable for thermothermal power generation. In 2010, the U.S. Army's Abrams tank was used to convert the high-temperature exhaust gas from the gas turbine engine used in the tank into usable electricity through the guò temperature difference power generation device, and finally the exhaust gas discharged from the tank engine reached 20 degrees at room temperature, which greatly reduced the infrared signature of the Abrams tank. However, due to the large temperature difference power generation device, the tank does not have enough space equipment, and the technology is still in the scientific research of the real room.

Chu Huifen nodded and said, "These two people are engaged in special industries, and the circle is not large, so it should be easier to find." ”

Two days later, Niu Wengui from the dusty Lanzhou Chemical Plant finally came to Benxi, and Niu Wengui flew directly from Lanzhou to Beiping. Then the 27 international express flights from Beiping to Pyongyang arrived in Benxi, which was the fastest travel speed in China in 87 years, which shows that the Lanzhou Chemical Plant was very interested in Liang Haiping's proposal.

On September 29, Li Yuanling returned to Benxi from Shengjing with three developers of the gas turbine project team, pretending to be technicians from the Northeast Locomotive Plant to join the negotiation team.

Take Liang Yuan's painful age as an example. Liang Yuan, who was in a state of truancy, did not dare to go to the metal research institute where Zhu Liguo was sitting, and ran to the work area of the railway engineer of the GDR.

The East German team has been working for more than 10 days, and a lot of the equipment has been commissioned, considering that the steel production is slow. When Liang Haiping signed an agreement with the United Locomotive Factory, he purchased steel for the manufacture of a marshalling car bottom in East Germany, and the steel was transported from Dalian Port to Benxi by sea a week ago.

Liang Yuan walked slowly along the boulevard of the factory, although the Soviet-style factory building does not look modern, but it is definitely not inferior to the steel structure workshop in later generations, and the old factory area has planted a large number of trees in the fifties and sixties, which is much stronger than the greening of thin grass in later generations.

Along the heat treatment workshop all the way to the assembly workshop, along the way the air compressor test run and the sound of the forging hammer is endless, it seems that the first car is likely to be off the assembly line next month, Liang Yuan thought while walking. Turning around the frame welding workshop, Liang Yuan saw four or five people in front of a small two-story building in the distance, and a blonde foreigner stood in the middle of the crowd dancing and gesturing. Liang Yuan walked over curiously.

Jurgen Christopher held the drive gear of the motor in one hand, shook the three views in his hand with the other, slowly controlled his tongue, and tried to make tolerances, mistakes, these few syllables, damn Chinese is simply too difficult, after learning for a week, Jurgen Christophe only learned the words "no" and "yes".

Translator Xiao Zhang did not come to work if he had something to do, he really couldn't come back tomorrow to talk about this problem, Jurgen sighed helplessly, tomorrow the progress will be delayed by another day, I really don't understand these Chinese, some people are as rigorous and responsible for their work as themselves, some people are simply derelict in their duties, they are all employees of the same enterprise This difference is too big.

"Is there anything I can do to help you?" Jurgen turned around in surprise to find a fair-skinned Chinese teenager standing behind him looking at him with a smile.

"Do you know German?" asked Jurgen, hesitantly.

"My German friend once said that my German Bonn accent is very strict. Liang Yuan smiled and said, "Oh, it's really good, in my opinion, your German is very good, and your help is really timely."

Liang Yuan listened for a while before he figured out that the East German expert named Jürgen Christopher in front of him had come to the Chinese technicians to solve the problem because of the manufacturing tolerance of the gears of the double-decker underbody generator.

Liang Yuan translated Jurgen's meaning to the technicians of the factory, and one of them took the drawings in Jurgen's hand and looked at them for a while after clarifying the facts, and said: "Please let this little comrade and the East German comrades say that this gear is completely manufactured in accordance with the drawings provided by the East Germany, and as for the 1 mm error in Zài, the manufacturing tolerance of this Cheng dù is completely within the tolerance range of China's railway vehicle equipment." ”

After listening to this, Liang Yuan suddenly remembered that in the 80s and 90s, China's locomotive factories and rolling stock factories were the only manufacturers in the world that allowed the production tolerances of locomotive and vehicle manufacturing.

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