Thanks to kaka2005, Jingjing Jianmei and Ant Worker Brother Ant for their reward support, thank you! ! ! ! The first chapter will be given first. I have worked hard today. Baozi has worked hard for four updates. Please support, collect and reward! ! ! ! ¡ª¡ª ¡ª¡ªThe next morning Just after six o'clock, Li Jun was woken up by the noisy machine tools outside. He put on his clothes in a daze, opened the door and came to the research room outside. He saw Chen Er who didn't know what he was busy with there. Rubbing his eyes, he said: "Second brother, what are you doing this early in the morning? I think you are really energetic. Even I can't sleep if you don't sleep." Chen Er stopped what he was doing. He said: "What if you have slept through your wonderful youth? You see, even Murong Wan and Wen Jing are up at this time, which means you are still sleeping. I won't talk to you anymore. I have to continue my work." "After that, Chen Er started the machine tool and got busy again. Li Jun looked indifferent and couldn't fall asleep. He simply sat next to him and watched what Chen Er was doing. After about half an hour, Chen Er finally stopped the machine and said to Li Jun: "I'll show you something good, then." A round object was thrown towards Li Jun, and it came out. Li Jun instinctively took it in his hand. When he saw it, he immediately broke into a cold sweat. He quickly threw it far away and fell to the ground. It took a long time before he got up amidst Chen Er's laughter. It turned out that what Chen Er threw over was a ready-made Type 82-2 grenade shell. Li Jun said angrily: "Second brother, you scared me to death just now. We don't use it to play like this. You don't know that I How did it feel to receive that thing just now? It was so out of my mind." Chen Er walked over and picked up the shell and said, "Don't you feel sleepy now? I don't have any medicine in it. I didn't expect it." You are so cowardly." Li Jun quickly argued: "Second brother, this is really not a matter of courage. Anyone who sees such a round iron thing falling into his hand is definitely lying if he is not afraid. . Besides, this was thrown from your hand. Who knows if it is some advanced weapon you invented? I don¡¯t want to be an experiment. "Li Jun is not sleepy at all now, and is even a little bit tired. Afraid. Chen Er said with a smile: "You really guessed it right. This is an unfinished grenade. How about it, it looks good." Li Jun took the shell from Chen Er's hand and looked at it for a long time. Said: "It looks similar to the Japanese Type 97 grenade. It is quite comfortable to hold in the hand. And I feel that yours seems to be a lot lighter in weight, but it does not have a charge and a fuse. It looks like It's quite good." Chen Er couldn't help but smile and said: "I didn't expect that you are very knowledgeable, and you also have research on grenades." Li Jun said with a proud look on his face: "Hey, I'm really being criticized by you now. By the way, when we were at the 501 Arsenal, I couldn't be idle while you were doing research. I personally threw this Type 97 grenade several times. It is indeed much more powerful than the wooden handle grenade in our country. Less, but the disadvantage is that the delay is not stable. Sometimes it takes seven or eight seconds before the explosion occurs. I think even a turtle can dodge it. " "And the quality is even better. A pound smaller, a soldier can carry at most seven or eight, which is the limit, but it is still much lighter than the wooden handle grenade." Listening to Li Jun's words, Chen Er couldn't help but nodded. Li Jun. What I said is to the point. I really have nothing to add. The troops are still equipped with wooden handle grenades. It is indeed time for improvement. Chen Er continued: "Don't underestimate the thing I made. Although it looks similar to Japan's Type 97 grenade, you also saw that my grenade uses an oval shell. This not only It can increase the space inside the shell, and also greatly saves raw materials, and the quality is also greatly reduced. I have also made improvements to the refilled shrapnel, but this is currently confidential. " Li Jun's various details about Chen Er. The novel ideas have reached the level where they are not surprising. In his opinion, nothing is impossible for the second brother. If this was put into the 21st century, it would be blind worship, but in that era, it was considered Just a normal thing. Li Jun saw that he couldn't help his second brother, so he simply went back to the house to read a book. They all say that you should live until you are old and learn. This sentence is more applicable to their industry. If you don't study for a day, it will definitely not work. of. Because you want successful developmentTo succeed with a weapon, drawing is the foundation. You must be able to operate machine tools, and you must also understand the mechanical principles of firearms. You must also consider the accuracy of bullets and the battlefield practicality of the entire gun. This is definitely a complex and huge knowledge system. If you want to make your own achievements in this area, if you are not a time-traveling talent like Chen Er, you have to work ten times or even a hundred times as much as ordinary people to achieve a little bit of success. Watching Li Jun leave, Chen Er picked up the shell and started processing it again. With the continuous sound of the machine tool, the 82-2 type grenade shell was finally officially completed soon. Chen Er took a look at the time and it was already past eight o'clock. Thinking that he had not bothered to eat breakfast, he was doing well enough. After placing the casing, Chen Er started making other parts. The delay fuse is composed of four parts: the fuze body, the ignition mechanism, the detonating device and the safety mechanism. This is the main body of a grenade. Whether it can succeed depends on the accuracy of making the delay fuse. The reason why Japan's Type 97 grenade accidentally exploded was because there was a problem with the delayed fuze. Moreover, the fuze was the biggest guarantee of the safety of the grenade. Chen Er did not dare to slack off in the slightest. Although he has a large military industry system, it only provides him with various drawings and development processes of weapons. If he wants to restore these weapons from his mind, he still has to rely on his own hands. Developing weapons is naturally accompanied by various dangers, but Chen Er did not dare to be careless. The morning passed suddenly, and Chen Er was still busy in a nervous and orderly manner. More than an hour passed, and Chen Er finally took a deep breath. The fuse part was finally completed. Now he only needed to complete the filling of gunpowder and shrapnel inside the shell. Once the fuse was installed, the grenade would be considered official. 's finished. I rested for a while and drank some water. After a busy morning, Chen Er really sweated a lot. Even though he was in the middle of the mountain, for a highly concentrated person, he was still sweating all morning. Chen Er is a true portrayal of this state at this time. The process of filling gunpowder and shrapnel is not that complicated. With the last step, Chen Er carefully pressed the fuse into the projectile body, and a Type 82-2 grenade truly appeared in Chen Er's hands. Looking at this exquisite "work of art" in his hand, Chen Er couldn't help but smile. To them, this was definitely just a "work of art", but on the battlefield, this was a murderous weapon that harvested human lives. This is why they say that science is innocent. People who research weapons are not wrong. But once the weapons are used on the battlefield, they will definitely bring bloodshed and killing. But can you blame those who developed these weapons? Well. The answer is definitely no. Their original intention may be just for the further advancement of human civilization, but the results are often not something that one person or a group of people can control. When Li Jun came out, he was looking at Chen Er holding the prepared grenade in a daze. He walked over and patted Chen Er on the shoulder and said: "Second brother, what are you thinking about? You are so absorbed that I can see your eyes are straight. They always say that I am just imagining things. I think you are not far behind." Chen Er immediately came back to his senses after being slapped by Li Jun. Why did he think of that just now? He is just a military engineer and a philosopher. Don¡¯t think about family matters anymore. Chen Er shook his head and said, "You kid, please don't be so nasty. You and I are different." He shook the grenade in his hand and said, "Let's go to the shooting range to try its power. I guarantee it will scare you." Li Jun said disapprovingly: "Just go, it's just a grenade. It may be more powerful than a cannonball. I want to take a closer look." The two people just said. Not far after walking out, he met Wang Yong. He had planned to go to Chen Er and the others early in the morning, but suddenly his master arranged a task for himself. He was not ready to go as soon as he completed it, but who knew that he would meet him in advance here? . Knowing that Chen Er had produced another grenade, Wang Yong regretted it even more. If he had known it, he would have let others do what his master told him. This was another great opportunity for him to learn. But it's not too late now, Wang Yong also walked towards the shooting range with them. There were dummies made of wood specially placed on the shooting range to test the power of firearms and grenades. Chen Er looked at Li Jun and Wang Yong and said: "You come, or I come." Of course, Li Jun volunteered to take it. Grenade said: "Of course I'm here. You all stand back a little. It's best to hide in the bunker over there. I don't guarantee that I can throw it to that position." Wait until Chen Er and Wang Yong are both After entering the bunker, Li Juncai pulled out the pull tab of the grenade, pressed it and threw it out, and quickly hid in the bunker next to it. The grenade drew a line in the airThe perfect curve fell to the ground about thirty meters away. About a second or two later, there was an explosion sound of "boom". After more than ten seconds, when the smoke and dust dissipated, Chen Er and the three of them walked out of the bunker. Li Jun shook the dirt on his body and said: "Second brother, don't tell me that this grenade is quite capable." "I just don't know how powerful it is?" The three people trotted to the site of the explosion. A deep hole had been blown up on the ground, and the wooden dummy next to it was also overturned. Li Jun casually got a wooden dummy, looked at it and said: "Second brother, what did you put in this grenade? You see, this dummy has been blown beyond recognition, and the whole body is densely covered with small particles." Kong, if it were a real person, it would be like a sieve."