ps: Thank you Skeleton Doll Brother for the reward, and thank you Shallow Water Brother, 4ooo + big chapter presents, today is already 10,000 words, and the bun has worked very hard!! Ask for collections, ask for recommendations, ask for rewards, ask for monthly passes, and the brothers will walk mightily!!!!!!!

After Chen Er got up, he rubbed his hazy eyes, and the whole person finally recovered to a state full of energy. Looking at the thick drawings on the table, Chen Er hurriedly sorted them out, these things are treasures, and future improvements will depend on them.

As soon as the drawings were sorted out and put away, there was a knock on the door outside, and Li Jun pushed open the door and said, "Second brother, Wang Yong is here, let's finally discuss the problem of the improved sniper rifle today." Chen Er hurriedly put on his coat and walked outside with Li Jun, Chen Er was also full of expectations for Li Jun and Wang Yong's thoughts, hoping that the two of them would not let themselves down.

Wang Yong saw Chen Er come out and gave him a big hug, which made Chen Er a little overwhelmed. If this is put in the 21st century, maybe Chen Er will think that Wang Yong has that kind of hobby, and he is not a suitable person for a good friend. After a few pleasantries, we got to the point. Wang Yong said: "Li Jun and I wanted to use the sniper rifle drawings you researched to make improvements, but we encountered a little problem. Li Jun also nodded and said, "Yes, we have drawn the drawings of the firearms." But we always feel that something is wrong, and we can't find it for a while, second brother, you just show us. Saying that, Li Jun took out a stack of drawings and put them in front of Chen Er, Chen Er roughly glanced at them and knew in his heart, this improved model is nothing more than making a fuss about the shooting distance and bullets.

But the two of them ignored a huge problem, the bullet changed the barrel and had to make a subsequent change. Although they increased the diameter of the bullet and the barrel, they neglected the length of the barrel. In this way, it will directly lead to the initial change of the bullet, which in turn will affect the range of the bullet. It seems like a minor problem. But it is definitely a huge hidden danger for the soldiers on the mission.

Chen Er took out a drawing and said: "Look here, the length of this barrel can be appropriately lengthened by thirty millimeters, so that the bullet will have a big improvement in both initial and stable performance, and the power may also increase exponentially." Li Jun and Wang Yong took a serious look at the place pointed out by Chen Er. Li Jun patted his thigh and said, "Oh, why didn't I see it, I finally found the problem." Wang Yong couldn't help but stretch out his thumb to Chen Er, and praised while looking at the drawings: "Chen Er, this time I am completely convinced." No wonder the master said that your future achievements are limitless, and it seems that we can't keep up with your pace. "The problem has been solved, and now everyone is happy. With the right drawings, Li Jun and Wang Yong couldn't wait to devote themselves to the production of firearms.

Chen Er saw that they didn't seem to need his own help, so he simply went back to the house and took out his drawings to get busy making anti-tank mines. This is the most specialized research institute for small arms. There is no shortage of all kinds of materials, and Chen Er is a famous person in the institute, almost to the point where materials can be used at will. And even if there is a situation that Chen Er doesn't know much about. The other masters will be enthusiastic to answer for him.

Chen Er felt that he had become the first person under the director, and even surpassed Zheng Guoqiang, the director, in some aspects. In order to ensure that his research and development can be 100% successful, Chen Er can't be sloppy in terms of materials, and all kinds of materials are taken in two copies.

After a busy day, Chen Er finally moved everything he needed to the research room. Probably because they were afraid of disturbing Chen Er's rest, Li Jun and Wang Yong didn't know where to make their improved sniper rifles. Now the whole lab is empty. It just happened to provide him with the best place, and Chen Er was still thinking about how to talk to them just now. It turned out to be a bonus.

Chen Er was originally the kind of person who said he would do it, not to mention that now the materials are complete, and he has been plunged into the anti-tank mine system. Type 72 metal-shell anti-tank mine adopts steel disc spring as the pressure mechanism, mainly to fight against tracked vehicles, has multiple explosion-resistant designs, mine shell sealing, and is definitely a weapon for defending against enemy tanks and armored vehicles.

Type 72 metal-hulled anti-tank mine diameter: 279 mm, height: 93 mm, total weight of the mine: 8 kg, charge weight: 5 kg. Detonation pressure: 18o-4oo kg, using 72-A explosion-resistant fuze or double impact fuze, various numbers popped up in Chen Er's mind one by one.

The first thing that needs to be solved is naturally the thunder shell, because it is a fully sealed structure, so it takes a lot of effort to do. The time of the day passed in a flash, except for the time to eat, Chen Er was immersed in his own research, and Li Jun and Wang Yong did not come back to eat.

Murong Wan watched Chen Er fiddle around with an iron box, and she didn't know what Chen Er was doing. The bored one could only ask Wen Jing: "Wen Jing, what do you see Chen Er doing, that iron box will also be a weapon, it looks weird." ”

Wen Jing said with an expression on her face that you asked me and I asked whom: "I just don't know this, the two of us are in charge of logistics now, as long as they don't go hungry, it's not a waste of brains to think so much." Murong Wan gave a hygienic look and said: "Wen Jing, when did you become a little lazy, it seems that the phrase 'those who are close to Zhu are red and those who are close to ink are black' really makes sense." You all learned from Li Jun, and you learned badly. ”

Wen Jing hurriedly quibbled: "No, it's definitely not what you said." I've always been very diligent. It's just that there are some things we need to think about.,We're laymen in the research of this weapon.,If you want to be diligent, you're not diligent.,Let's go.,It's time to eat again.。 ”

The two of them talked and laughed and walked towards the cafeteria, as the saying goes, the beauty effect is very effective everywhere. Of course, there is no way to verify who said this saying. However, a clue can be seen from Wen Jing and Murong Wan's daily cooking, and the two of them basically don't have to queue up. Even if they are queuing, there are always people who take the initiative to give them a place, and they are called ladies first, who knows what they think in their hearts.

After eating, Chen Er continued to be busy, and seemed to be blind to the two big beauties in front of him. It wasn't until very late that he put down his tools. At this time, Li Jun also came back, and the two of them said hello and went to sleep separately. As the days passed, a week passed in such a monotonous and challenging day, and Chen Er's anti-tank mine system seemed to have come to an end.

On this day, Li Jun came back very early, and although his eyes were a little dark, he still couldn't hide his excitement, because the sniper rifle was finally developed. Moreover, Li Jun and Wang Yong had already gone to the shooting range to try the gun, and there was no problem at all, he was here to report the good news.

But at this time, Chen Er was not there. Because he went to the final step, the assembly of anti-tank mines was also fraught with certain dangers, and he had to choose a quiet place. That's five kilograms. It's not five kilograms of rice, once something goes wrong, the consequences are definitely very strict, so he can't tolerate the slightest interruption and distraction, and only by concentrating can he achieve the best state.

After waiting for a long time, Li Jun didn't see Chen Er's figure, and he was a little anxious. It just so happened that Wen Jing and Murong Wan came back from dinner. Li Jun hurriedly asked, "Wen Jing, where did the second brother go?" I waited for a long time, why didn't I see him? ”

Wen Jing looked left and right and said, "I don't know, Chen Er was still here when the two of us left just now, maybe he went to the toilet." Besides, it's dinner time, and I'm sure he won't go far. This time Wen Jing's guess didn't work, and it wasn't until more than ten o'clock in the evening that Chen Er came back with a tired face, still carrying a big iron box in his hand.

Li Jun hurriedly stepped forward and asked, "Second brother, where have you been, we have been waiting for you for a long time." If you don't come back, we're going to move everyone to find you. Chen Er just nodded mechanically, looking at the lunch box on the table, his eyes finally had a hint of light, and he didn't care that the food was already cold, so he started to eat a lot of food, and the whole thing was the image of a starving ghost reincarnated.

The three of them were dumbfounded, Wen Jing twisted Li Jun on the side and said, "I'm not dreaming, Chen Er hasn't eaten for half a day, so it's not like this." Li Jun was twisted by Wen Jing like this, and naturally there was a "pain" sound, which pulled the three of them into reality at once. Wen Jing said to herself: "It seems that I am not dreaming, this is really true, it is really a little magical." ”

Li Jun's arm was twisted by Wen Jing a little painful, but he didn't dare to do it to the person he liked, so he could only endure it silently with tears in his heart. At this time, Chen Er had already finished eating, and Li Jun couldn't wait to say: "Second brother, our sniper rifle has been successfully developed, and it has been taken to the shooting range for test firing. As you expected, the power is much greater, and Director Zheng is also very satisfied with this gun. ”

Chen Er made a mechanical "um" again and walked towards his room, and his steps were also a little frivolous, as if he was drunk. The three of them didn't dare to disturb Chen Er, they could only be relieved after watching Chen Er enter the house, and they could only talk about it tomorrow.

The next day, Chen Er had a rare sleep, and when he opened his eyes and looked at his watch, it was already more than seven o'clock, which was definitely the first time in history for him who usually got up at six o'clock to exercise. However, recalling yesterday's scene, Chen Er was still in a cold sweat, and there was a small mistake in the final assembly of the anti-tank mine yesterday, just because the density of the key material was not enough, fortunately, he quickly replaced it, and almost failed.

The consequence of failure may be to explode on the spot. I can be regarded as shaking around before the ghost gate closes and coming back. If you want to say that God is still good to himself, crossing this kind of thing is born in his body, and he will not let himself die so easily.

Stretching his waist, Chen Er opened the door. But the scene that caught his eye once again stunned him. He shouted at Murong Wan, who was standing there as if he was reaching for something on top of the cabinet, "Don't move." Murong Wan was stunned for a moment and then asked, "What's wrong with Chen Er, is there a mouse on the ground?" Chen Er cautiously walked over and said, "My eldest miss, do you know what you are stepping on?" ”

Murong Wan shook her head and said, "Isn't this just an iron box, nor is it a treasure, I want to take the things on the top of the cabinet just out of reach, so I will use it as a stepping stone, you won't be angry because of this." Chen Er cried out helplessly in his heart. This is really an aunt-level character, holding an anti-tank mine as a stepping stone. This is simply the birthday boy hanging. It's too long to be idle.

The conversation between the two inevitably attracted Wen Jing and Li Jun, and after the two opened the door, they asked in unison, "What are you doing here?" Chen Er pointed to the iron box at Murong Wan's feet and said, "Look at that, she actually stood up." ”

Wen Jing glanced at it and said, "What's new here, isn't it just a broken iron box." Just let Wan'er come down and give it back to you, it's not a baby. Li Jun also nodded, obviously agreeing with Wen Jing's statement, Murong Wan was about to come down from above.

"Don't move," Chen Er stopped loudly, "What do you know, this is not an ordinary iron box, this is an anti-tank mine, and there are five kilograms in it." If it really detonates here, let alone Murong Wan, we will all be finished. "As soon as I heard it was a landmine. Murong Wan's legs trembled even more, she actually stood on top of the mine, and this time it was completely over.

Wen Jing was so frightened that she covered her mouth, and Li Jun also had a stunned expression, looked at Chen Er and said, "Second brother, you have been studying this thing for more than a week." What to do now, we can't die without help. Chen Er said helplessly: "Now we can only block it." Since Murong Wan has not been able to detonate the mine's pressure device now, there should be no big problem. ”

As for the damn pressure detonation number jù Chen Er had already put it aside, it was a theoretical number jù, and the materials of this era did not meet the best standards, who knows if Murong Wan would have detonated the mine if she had jumped on it just now. Chen Er cautiously walked in front of Murong Wan and said, "Don't be nervous, I'll slowly take you down in a while, remember not to step on the mines under your feet." ”

Murong Wan's forehead is already full of sweat now, and she can't care so much at this time, it's better to be hugged by Chen Er than to be blown to pieces. Five kilograms, maybe a little worse than being broken. Chen Er carefully passed one of his hands under Murong Wan's armpit, and put the other hand on the crook of Murong Wan's leg, and with the force of both hands at the same time, he easily picked Murong Wan up.

Murong Wan also hurriedly hugged Chen Er, closed her eyes tightly, but what she thought in her mind was that even death was worth it, after all, she died in the arms of the person she loved. At this time, Chen Er was also greatly relieved, it seemed that his own system was still relatively qualified, plus Murong Wan was relatively light. If there was a 180-pound man standing above, Chen Erzhen didn't know if the mine would have detonated.

The danger was finally lifted, and Murong Wan blushed and broke free from Chen Er's embrace, although there were some actions just now, and even Murong Wan felt Chen Er's heartbeat, but now I am afraid that it is still greater than the throbbing brought by emotion.

Chen Er had a long memory this time, and carefully put the anti-tank mine in a safe cabinet. Originally, such a thing should not have been born, but I blamed myself for being too tired yesterday, and I forgot to put this iron guy in a safe place for a while. Fortunately, Murong Wan was in danger today, otherwise Chen Er would have lived in a lifetime of guilt and repentance. b

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