"Da Mao wake up." When he came to his office, Jiang Yan saw Xu Damao sleeping on the desk covered with clothes.

"You're back, Boss." Xu Damao, who was woken up, rubbed his eyes, and as soon as he looked up, he saw Jiang Yan standing in front of him.

"You've been waiting for me here?" Jiang Yan asked a little puzzled.

"Almost! It was when I got off work last night, I saw that you still didn't come out, so I went home and told Grandma Lu that I was going to work overtime, and then I came back on a bicycle, afraid that you had something to do with me, and I have been waiting here since then. ”

"Okay, I have a heart, have you eaten breakfast?" Jiang Yan asked.

"Not yet! Boss, have you eaten? ”

Hearing Xu Damao's words, Jiang Yan thought for a while and said, "I ate some, but I didn't eat enough, how about accompanying me to drink a bowl of fried liver later?" ”

After listening to Jiang Yan's words, Xu Damao glanced at Jiang Yan's red eyes again and said, "Of course the boss is no problem, but boss, I see that you have not rested for a day and a night, or you can sleep for a while, I will buy fried liver." ”

"No, Minister Liu gave us two days off, let us go back and have a good rest, and there will be a tough battle to fight in a few days. You also take advantage of these two days to have a good rest, and when you come, you may have to bring some clothes, and it is estimated that neither of us will be able to go back in a short time. ”

"By the way, this is the pork and rice I just received, okay, I'll go in and clean up, let's go home, this time it's really exhausting me."

"Boss, go and clean up, I'll take you away when I go back." Xu Damao took the pork and rice in Jiang Yan's hand.

Since Jiang Yan taught Xu Damao and they learned to ride motorcycles, Jiang Yan has rarely ridden motorcycles.

"Xiao Yan, here," Jiang Yan finished packing his things and just walked out of the office building with Xu Damao.

On an S-type jeep parked in front of the building, the windows were rolled down, and the people sitting inside called Jiang Yan, who had just come downstairs.

"Minister Liu", seeing the people in the car, Jiang Yan was stunned for a moment, and hurriedly walked forward.

"Minister Liu, I don't know what to do with me." Walking closer, Jiang Yan asked.

"What Minister Liu, called Uncle Liu, this is not a public place."

"Yes, Uncle Liu, I don't know what you call me." Jiang Yan emphasized again.

"Get in the car, talk in the car." Liu Xufeng replied to the question.

Hearing Liu Xufeng's words, Jiang Yan turned his head to Xu Damao and said, "Damao, you go home first, and I'll go back in a while." ”

Xu Damao heard Jiang Yan's words, nodded, turned his head with his things and walked towards the place where the motorcycle was placed.

"I see you're quite talented in engines, so come here! Rest assured, you are still an engineer here, and with my support, you can make the most of your strengths. ”

Sitting in the car, Liu Xufeng said to Jiang Yan.

"Don't be, Uncle Liu, you have cleaned all this little thing in my stomach, I'd better go back to the rolling mill! Metallurgy and lathes are my strengths. ”

"You have also seen that many of the things we produce need to use good machine tools and equipment, we don't have these things, we can only use local methods, I still want to work one side, which can also indirectly help Uncle Liu, you are not."

"No wonder your Uncle Luo said that you are a little slippery, okay, if you don't come, you won't come! This machine tool is also the top priority of the country, but there is something Uncle Liu asks you for help, you can't refuse. ”

"That's not going to happen, as long as Uncle Liu you speak, I will definitely help," Jiang Yan assured Liu Xufeng.

Is it okay to joke, Jiang Yan is eyeing his family's Rarity, this Liu Xufeng is also a good father-in-law, although this father-in-law is not a pro, but he still has to have a good relationship.

"I said in the ministry that you have built an oxygen converter, this thing is good, but I know that several large steel plants in our country have applied for the development of this oxygen converter, but you have developed it before the plan is finished, is this thing so good?"

Hearing Liu Xufeng's words, Jiang Yan thought for a while and said to him: "Now the mainstream of foreign steelmaking is this oxygen converter, and the domestic open-hearth furnace will eventually be eliminated." ”

"The cost of building an oxygen converter is much cheaper than an open-hearth furnace, this country can save a lot of money, and the technology can be on par with the world, and more importantly, the efficiency of this oxygen converter is relatively high, it can produce the most steel in a short time, and it can also greatly save energy and reduce waste loss, which can be said to be a lot of money."

Hearing Jiang Yan's story, Liu Xufeng was silent for a moment, and then said: "No wonder Lao Chen actively promotes this project, since there are so many benefits, you Uncle Liu and I also have to support it, and when the time comes, I will also give Minister Huang my views and strive to get up early to promote." ”

"Then thank you Uncle Liu."

"By the way, Uncle Liu, what kind of major is Rarity studying?" Jiang Yan looked at Liu Xufeng in a good mood today, and asked very carefully.

"Forget it, you kid, who told my Rarity to have a crush on you kid! He studied aerodynamics at Tsinghua University. ”

"Aerodynamics." Hearing this, Jiang Yan was cold, and she thought that she would study some subjects that were biased towards liberal arts, but she didn't expect to learn such a major.

Aerodynamics is a branch of mechanics that studies the mechanical properties of aircraft or other objects in relation to air or other gases, the flow of gases, and the accompanying physicochemical changes. It is a discipline that has grown up on the basis of fluid mechanics with the development of the aviation industry and jet propulsion technology.

"Uncle Liu, why did she choose such a discipline."

Hearing Jiang Yan's question, Liu Xufeng did not speak, but lit a cigarette and smoked it, and only after a cigarette was almost finished before he spoke: "Maybe it was affected by his father's sacrifice!" His father died under the bombing of the little devil's plane. ”

Liu Xufeng's words reminded Jiang Yan of Cao Bin, who went to study at SL together, and his father, like Rarity's father, was sacrificed under the plane of the little devil.

As a pseudo-military fan,There are a lot of aircraft information in the computer in my own space,Domestic J5 and J6 have several fighters and transport aircraft from other countries in the fifties and sixties,MiG series is the most,But that's also a more general introduction and some local drawings。

These drawings are all things that Jiang Yan bought on the dark web before, and they are very confidential in this era.

For the J5 produced by the MiG-17 aircraft introduced by the country, Jiang Yan is quite familiar.

This MiG-17 fighter completely inherits the advantages of the MiG-15's high flight altitude and fast climb speed, but also inherits its shortcomings such as instability when flying at high speeds, easy to form tail spin and fall, and difficult to balance laterally.

After the introduction of the country, major improvements have been made to these shortcomings, and the combat effectiveness of the improved J5 is much stronger than the original.

Since Rarity is studying aerodynamics and is destined to work at the institute in the future, she can also inadvertently reveal something that can help improve the country's warhawks and protect her country's skies.

Thinking of this, the corners of Jiang Yan's mouth raised slightly.

(End of chapter)