"Student Xiao Jiuer, let me tell you, how did you master this skill? With such operating skills, which worker dares to challenge in the future? He dares to ask us to do it ourselves!" As Liu Yijiu estimated, the muffler was completed in less than two hours.

At first, Yang Shan ran to the door of the workshop to pretend to look at the wind, but when he turned around, he saw that Liu Yijiu was smooth and even sublimated to artistic operation. He also threw the matter of watching the wind at the door and maintaining his own safety. He ran to the edge of the lathe to observe how Liu Yijiu processed the muffler.

Liu Yijiu was originally counting on the two of them to help, but in the end he realized that the two grandsons looked at monsters and said anything like playing the piano at a cow, so he simply did it himself.

Fortunately, the tools in the workshop site tool cabinet are basically complete, and he doesn't need to get a lot of knives. He doesn't need to go to the warehouse to get special knives, otherwise he will have to catch them. The four thin-walled covers, the inner one-sided thickness is 2.5mm, and the outer one is only 1.5-2mm. Liu Yijiu thinks the processing is not difficult, but Yang Shan and the others still know it.

In particular, it is necessary to not have too much processing deformation, and the surface processing quality is smooth enough. Needless to say, they can feel that the thing requires very high technology. The only thing that is easy to process is that the wall is densely packed with small holes with a diameter of only 1.8mm. Of course, if you don’t pay attention to this, the drill bit will easily break.

From the beginning, Liu Yijiu characterized the muffler as a disposable consumable and did not need to be done very precisely, so he did not spend too much effort on it, and it was finally completed in less than two hours.

This kind of operation technique is like an excellent sniper, forming muscle memory and engraved in the depths of the soul! He understood that it should be the real Liu Yijiu's own skills, and he didn't know how he practiced it.

"Yes, Brother Jiu, let's talk about it. We are all college students. Why are you so much better than us? Why?" Qin Huaibao heard Luo Tong sublimate Liu Yijiu's operating technology to the realm of art, and even if he didn't see it, he could imagine it.

They are also college students!

In this base, the level is extremely strict. The masters with great skills can ignore these levels at all. They all rely on technology to speak. Most of them are top masters in the country, but these masters are all old men or are about to enter the ranks of old men. A young man seems to be better than their skills and more skillful in operation. This impact is like throwing a stone into the calm water surface.

"We are college students of workers, peasants and soldiers. Xiao Jiuer has been playing these things since she was a child! Why do you think!" Yang Shan said quietly.

"Don't listen to Luo Tong's bragging. I'm just a little more proficient in operation. Practice more, who can reach that level? Besides, we are technicians, there is no need to practice operating techniques hard. If we do everything, what are the workers and masters doing?" Liu Yijiu didn't want to talk about this, and he couldn't even explain it clearly. "Let's hurry up and hurry up, there is still a long way to go. If you can't eat enough, you can pack your food and don't let people see it."

Staying near the base for too long is not a good thing.

At the entrance of the base, which is the exit of the valley, there is a highway extending out along the Zhouhe River at the entrance of the valley. It is said that this road leads to Hanyuan City, more than 100 kilometers away. Although there are few people on this road, it cannot be said that there are no one.

Several people have never left since entering the base.

The car transporting supplies in the factory cannot be used as long as you want to ride. If you want to go out, there are two ways: one is that it has a close relationship with the driver of the car shift and sneaks out; the other is to get the approval letter from the cadres at the base. Of course, there is another one, that is, taking the train - a train transporting supplies at the base will enter the railway directly every week. However, the danger of this railway is even more serious!

Most people can only pass through the highway when entering this base. This is a confidential base, and it is difficult to go out after entering!

"This road is really bad. The country doesn't pay more money to build a cement road. If there is a war in the future, how can the Dongfeng 5 of the base be transported out..." The road is relatively flat, but there is not enough carbon slag on the gravel road, and many stone tips emerge. When walking, it is high and low. It is much harder to walk than the road inside the base. Luo Tong accidentally stepped on a raised stone and almost fell down.

"Come on, that thing was transported out by railway. What's more, the mountain is constantly digging inside, and those gravels are not used to pave the road for anything! Besides, we didn't see Dongfeng 5 at all. Who knows if the legend is true?" Qin Huaibao and Luo Tong were both chatterboxes, and they kept talking along the way.

Liu Yijiu has just arrived in this era and has no understanding of many things. He just happened to get some information that is very useful to him from the nonsense of these two people. He has been listening silently.

Yang Shan has never interfered in saying that Luo Tong and the two of them were not full. After coming out of the machine workshop, they looked worried and were so happy that no one disturbed him.

He is much older than all three of them, and he is a little selfish. Even if he lives in the same dormitory, he is now a grasshopper on a rope, and the sense of distance between several people cannot disappear in a short period of time.

This is a loose interest alliance organized to eat meat!

Once something happens, it will disintegrate in minutes...

It is now late autumn, and the air deep in Daba Mountain is extremely wet and clear. Take a deep breath and the moisture flows straight into the lungs, stimulating the depths of the soul, making people feel energetic.

Several people were wearing gray work clothes from the base. In this era where only gray, blue, black and green colors were only gray, blue, black and green, no one would pay attention to their clothes.

There are only a few colors and styles in the whole country.

"By the way, how long does it take to go? There are old forests everywhere here, so let's just drill into this forest. There should be no guard battalion nearby, and it will be easy to be discovered if it is farther away..." After walking for more than half an hour, the base had been left in the mountains behind by several people.

Five or six half of them were automatically disassembled into parts, and it was not tiring to put the small ones in a military bag. However, the main part was wrapped in work clothes and clamped under the armpits. In addition, the road was not easy to walk, so Qin Huaibao really didn't want to go any further.

"Nearby? This is next to the base! There are probably not many rabbits and pheasants around here. If you can get a roe deer or a deer, it's almost the same. How many rabbits and pheasants do you have to get enough for us brothers to eat! Don't forget, we don't have many bullets in our hands!" There is no one nearby. There is a small mountain village five kilometers away from the base, which is where people from the base go to a small town more than ten kilometers away to rest.

Their target is also nearby.

Where there are people living, the garrison will leave enough space for them.

There is no saying that wild animals are protected these days, and everything you catch is a disaster. Of course, giant pandas are still not allowed to be more national treasure-level, and they have to be shot!

Due to inconvenient transportation and sparsely populated areas in the mountains, even in that village, there were only a dozen hunters. The guard battalion leaked enough territory for them to hunt, and if they mistakenly entered the guard battalion's defense area, they would not be knocked down by bullets.

"Hurry, there is a pheasant there! So fat! Guru! At least it must be more than two pounds. Hurry up and put the gun on..." After walking for a while, the few people who had not eaten breakfast were walking listlessly, and the few steamed buns that Luo Tong brought were fighting supplies that they had not caught any prey!

Looking along Luo Tong's finger, in the forest on the right side of the road, a long pheasant rested on an eucalyptus whose leaves had begun to fall, and was hooking up with a hen with a bit like a duck!

This suddenly made morale boost!

"Hurry up, just enter the forest from here. We will have nothing to do if we fly away in a while." This place is seven or eight hundred meters away from the location where the pheasant is. After Qin Huaibao said in a low voice, he pulled the five or a half main body under his armpits outward while drilling towards the forest.

"Liu Yijiu, what do you think?" Yang Shan looked at Luo Tong without hesitation and asked Liu Yijiu, who was struggling with such a long distance and ran over and flew away.

"It's just here. But we have reached the distance, and the pheasant probably has flew away long ago..." Liu Yijiu stared at Yang Shan, knowing what he was thinking, and sighed in his heart.

When it comes to being a human being, sometimes it is better not to be too shrewd.

After saying that, he followed the figures of the two of them into the forest.

Yang Shan looked at the few people and always felt that this was too dangerous. If he was caught, he would be punished or something. If he had no non-agricultural household registration and was deported to his hometown, would he still be able to live?

He shouted to Liu Yijiu: "Tell them, I won't go anymore. I still have to be on duty today..."

After saying that, he turned around and walked towards the base...

"Xiao Jiuer, this is how the muffler is installed? Luo Tong said that this is how it is installed..." When Liu Yijiu arrived, Luo Tong and Qin Huaibao had already assembled the 50,600-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60-60

"That's it." Liu Yijiu nodded.

Hearing Liu Yijiu say this, Qin Huaibao nodded with satisfaction, pulled the bolt, and began to aim at the male pheasant on the tree more than a hundred meters away.

The pheasant is here, and the movements of several people are so great, and for so long, I have been hooking up with hens on this tree without knowing that danger is coming!

"This sound really won't be too far away?" After a long glance, Liu Yijiu and Luo Tong, who were lying beside him, were both heartbroken. Not only did this bastard not pull the trigger, but instead put down the gun he was holding high, turned his head and asked Liu Yijiu in a low voice.

"My God!" Almost in unison, Luo Tong and Liu Yijiu cursed in a low voice.

This bastard, I won't ask any questions! The two of them watched the pheasant drool all over the floor. As long as the trigger was gently pulled, at such a close distance, the skills these bastards had to be trained in the guard camp shooting range. They had to eat the pheasant into their mouths!

"The principle of a muffler is to arrange the inner wall of the airflow channel or in a certain way in the pipeline to form a resistive muffler. When the sound wave enters the resistive muffler, part of the sound energy rubs in the pores of the porous material and converts into thermal energy to dissipate, so that the sound waves passing through the muffler are weakened. Although the muffler I designed does not use a special attraction material, there are four layers in total, and all the small holes are not at different angles. When the bullet is out of the bore, the air flow itself will expand and spread at the muzzle. However, the outlet in the front of our muffler shrinks, and a large part of the air flow will disperse out from the small holes in the first layer of the muffler and disperse layer by layer, which will effectively reduce the air pressure..." Liu Yijiu was speechless.

This kid is not serious about going to school, and now he actually doubts his major!

"Boss, just tell me directly that the gunfire will be much smaller? As for what we can't understand when we get so much?" When I was not satisfied with Liu Yijiu, I immediately smiled and said with apologies.

Then he quickly aimed the muzzle again at the male pheasant that had not yet flew away.

"Puff..." A slight wing-flaming sound rang out, and the pheasant flapped its wings and flew under the tree as Qin Huaibao pulled the trigger...
Chapter completed!