In the next few days, Section Chief Hou led Liu Hai to touch the milling machine, grinding machine, and boring machine, and also found some unused tools to teach Liu Hai to sharpen the knife.

Li Dali ate the fish of bangs, more and more attentive, every night to help bangs make up for the class, bangs' welding technology has improved rapidly, even Section Chief Hou said that bangs technology is already very good, better than the other three apprentices who have studied for a long time.

Liu Hai often went to the scrap yard, and finally on Saturday, he found a canister, but it was not a gas canister, but an oxygen cylinder.

What Liu Hai didn't know was that our gas tanks and oxygen tanks also started from picking up rags, as if they were picked up by foreign mountaineering teams, oxygen cylinders carried by mountaineering teams, and fuel tanks, these canisters were picked up by us, and then they started.

At this time, there were gas tanks and gas stations in Kyoto, but the proportion was very low.

This oxygen cylinder is dented, I don't know what the reason is, this thing can't be used even if it is repaired, because the metal is tired after the dent is repaired, I took out a tape measure and looked at it, 15.9 diameter, height 65.

Bangs don't know if the specifications behind the oxygen cylinder have changed, after all, so many years have passed.

"Take this down for now." Bangs feel that this is also possible.

took the oxygen cylinder back to the motorcycle factory, Section Chief Hou looked at Liu Hai and asked, "What is Xiao Liu doing?" ”

"Section Chief Hou, I have an idea here......

"I think the combination of mortars and unconscionable guns seems to have a trick?" Bangs gestured, and then ended.

Section Chief Hou thought about the lawsuit, and asked, "This thing shouldn't be accurate, right?" Oxygen cylinders are also expensive? ”

"Section Chief Hou, it's powerful, look at this thing, is the size equivalent to a heavy artillery shell? Field battles may not be of much use, but what about street battles? Liu Hai gave the oxygen cylinder to Section Chief Hou for a comparison.

"It's really ......." Section Chief Hou looked at the oxygen cylinder at this time, comparing it with the heavy artillery shells he saw.

"Tell me more?" Section Chief Hou continued.

"No, I just have this idea, and there are a lot of things I don't understand, add a mortar tail to the back, but I don't know what the size of this tail is, I consulted Mr. Zhu of the University of Technology last time, and I'll ask again this Sunday." Bangs shook his head and said.

"Well, tell me if you need to." Section Chief Hou didn't think it was very powerful, after all, we also have artillery now, but it can't dampen the enthusiasm of bangs, so it's okay to give it a try.

"Thank you, Brother Hou." Bangs breathed a sigh of relief in his heart.

On Sunday, Liu Hai continued to come to the literacy class, and Teacher Zhu looked at Liu Hai's homework book, and was also very happy, because Liu Hai was also studying during his working hours, and his learning progress was also very fast.

Xiao Lin still sits next to Liu Hai, the little girl has two pigtails, and she writes her homework in class, she goes out with Teacher Zhu after class, and lets Liu Hai go out together, Liu Hai doesn't go out to play easily, and when she is doing research, she sits for a few hours and gets used to it.

At noon, Mr. Zhu had to go to dinner with Liu Hai, and Mr. Zhu carried Xiao Lin, Liu Hai in the back, and went to the University of Technology one after the other, about ten kilometers away.

"Master." When I arrived at Mr. Zhu's house, when Mrs. Zhu saw someone coming, she hurriedly stir-fried the vegetables and greeted her bangs.

"Xiaohai is here, sit down." Shi Niang greeted bangs with a smile.

"Holo." Bangs nodded, and found a place to sit.

At noon, I ate rice, stir-fried meat with fungus, egg and vegetable soup, and a roasted tofu.

"Xiaohai, eating vegetables, when you are growing your body."

"Thank you, Master, I'll come by myself."

"Teacher, teacher, if you want to buy meat in the future, you can find me, the Dahongmen Meat Factory is not far from here." After eating, Liu Hai spoke.

As soon as Teacher Zhu wanted to refuse, the teacher said: "Which relationship is good, we usually go sometimes, and there is no good meat." ”

"I don't need a ticket over there, and it's cheap." Bangs said again.

Teacher Zhu opened his mouth and asked, "This has no effect on you, right?" ”

"No, some of them will export part of the factory, foreigners don't want to go into the water or something, and there are neat ...... that need to be repaired at the exit." Bangs spoke.

After eating, Teacher Zhu tutored Liu Hai, and Xiao Lin went to take a nap, and the children should rest well.

"Xiaohai, you can start learning English." Teacher Zhu was also thinking about the problem of bangs learning, and said.

Liu Hai not only knows English, but also Russian and German, and when he heard this, he immediately nodded: "I listen to the teacher." ”

"Let's save a little time for a last, and I'll speak English to you." Mr. Zhu was very satisfied with the attitude of the bangs.

"Teacher, is the distance of the shell related to the amount of charge?"

"Yes."

"So how is this calculated?"

"This one is more complicated, involving physics, mechanics ......."

"Teacher, how did we calculate the distance with our conscienceless cannon before?"

"This seems like a test, right?"

"Teacher, how is the tail behind the mortar calculated......."

"This is ......."

During the break in homework, Liu Hai asked a lot of questions.

"Xiaohai, this physics book, you take it first, if there is anything you don't understand, write it down, if you want to study artillery and the like, you have to study not only physics, but also mathematics, chemistry and ......." In the evening, Mr. Zhu took a physics book and showed it to Liu Hai.

At this time, physics does not have as many things as reading behind bangs, and it can be said that physics in modern high school is almost equivalent to college at this time.

The faster human beings develop, the more knowledge involved, and then a physics will be divided into many majors, and a simple mechanics will be divided into many majors, and how many people will fall on these two simple words.

Liu Hai went to the Dahongmen Meat Factory again, and took the lard, which was three catties, of course, it was for money, the better the relationship, the more it had to be calculated, otherwise, it would be a mess in the back.

When I got home, I made a fire, first put some water in the aluminum pot, then cleaned the lard, cut the lard into pieces, put it in the pot, and add water to refine the lard, so that the lard is very white.

Soon the fragrance diffused, and the second uncle was holding a pu fan, wearing a vest, and greeted Liu Hai: "Xiao Liu, where is the oil refining?" ”

"Second uncle, have you eaten?"

"Eat, you haven't eaten yet?"

"I just went to make up for it and came back."

The second uncle looked at the lard in the pot with bangs, it was the best, and there was no way to cover the lid of the pot for oil refining.

Of course, the second uncle didn't ask what was going on, snakes have snake roads, rats have mouse roads, not to mention that Liu Hai is still a cadre.

"Brother, what about oil refining, come to my house tomorrow night to eat chicken, and the second uncle will also be with you." Xu Damao greeted at the door with two chickens.

"Yo, that's good."

"There, there, I bought it from a villager in the countryside."

At this time, the movie projectionist is very popular, and many places show movies for more than an hour to watch, and many times these chickens almost don't cost money, let alone buy them if you have to pay for them.

"Xiao Liu, is this learning fitter?" The second uncle was about to leave, when he saw a vice in the next room, and a file or something, so he asked.