"Xiao Jiu'er, tell my brother, how did you practice this skill? With such operating technology, which worker will dare to call the board in the future? Dare 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 in order not to be implicated and pretended to look at the wind, but when he turned around, he saw that Liu Yijiu's smooth and even sublimated to the artistic operation action, looking at the wind at the door, and keeping his own safety were also left behind by him, and he ran to the edge of the lathe to observe how Liu Yijiu processed this muffler up close.

Liu Yijiu originally counted on the two of them to help, but in the end, he found out that the two grandsons had the same expression of looking at monsters, saying that everything was like playing the piano to a cow, so he simply got it himself.

Fortunately, the tools in the tool cabinet on the workshop site are basically complete, and he does not need many knives, so he does not need to go to the warehouse to get special knives, otherwise, he will really have to catch blind. Four thin-walled sleeves, the innermost unilateral thickness is 2.5mm, and the outer one is only 1.5-2mm, Liu Yijiu feels that the processing is not difficult, but Yang Shan is still clear.

In particular, it is also required not to have too much processing deformation, and the processing quality of the surface is smooth enough. The only thing that is easy to process is that the walls are densely packed with small holes with a diameter of only 1.8mm. Of course, if you don't pay attention to this slightly, the drill bit can easily break.

From the very beginning, Liu Yijiu characterized this muffler as a one-time consumable, and it didn't need to be made very precisely, so he didn't spend too much effort on it, and finally it was completed in less than two hours.

This kind of operation technique, like an excellent sniper, forms muscle memory and is engraved in the depths of the soul! He understands that it should be the real Liu Yijiu's own skills, and he doesn't know how to practice 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 that Luo Tong had sublimated Liu Yijiu's operation technique to the realm of art, even if he didn't see it, he could imagine it.

It's also a college student!

In this base, the hierarchy is extremely strict, and the masters of the technical cow can not care about these levels at all, and they all rely on technology to speak. Most of them are the top masters in the country, but these masters are all old men or about to enter the ranks of old men, a young man seems to be better than them, and the operation is also skilled, which is like throwing a stone into the calm water.

"We are workers, peasants and soldiers, college students, and Xiao Jiu'er has been playing these since childhood! Why do you say? Yang Shan said faintly.

"Don't listen to Luo Tong's nonsense, I'm just a little more proficient. Practice more, who can reach that level. Besides, we are technicians, there is no need to practice operation skills, if we do everything, what are the workers and masters doing? "Liu Yijiu doesn't want to talk about it, and he can't say it clearly." Let's hurry up, there's still a long way to go. If you can't eat enough, you can wrap things up, so don't let people see them. ”

Near the base, it's not a good thing to stay too long.

At the gate of the base, that is, at the exit of the valley, there is a road extending along the Zhou River at the mouth of the valley, and it is said that this road leads to Hanyuan City, which is more than 100 kilometers away.

Several of them hadn't left the base since they entered the base.

The car transporting materials in the factory is not something that can be taken if you want to, and if you want to get out, there are two ways, one is to have an irreversible relationship with the driver of the car class, and sneak out; The other is to get the approval slip from the cadres of the base. And, of course, there's the train - there is a weekly train from the base that transports supplies directly into the railway. It's just that the danger of this railway is even greater!

Most people can only enter this base by road, and go out, this is a secret base, and it is difficult to get out after entering!

"This road is really rotten, the country does not spend more money to build a cement road, if there is a war in the future, how can those Dongfeng 5 of the base be shipped out......" The road is relatively smooth, but the gravel road is not paved with enough carbon slag, and the tips of many stones have come out, and the road is one foot higher and one foot lower, compared to the road inside the base is much more difficult to walk, Luo Tong stepped on a raised stone carelessly, and almost fell down.

"Come on, that thing will be shipped out by rail. What's more, the inside of the mountain is constantly digging inside, and those gravel are not used for paving! Besides, we didn't see Dongfeng 5 at all, who knows if the legend is true! "Qin Huaibao and Luo Tong are both talkative, and they talk non-stop all the way.

Liu Yijiu has only arrived in this era, and he doesn't know a lot of things, so he just can get some information that is very useful to him from the nonsense of these two people, and he has been listening silently.

Yang Shan has rarely interjected that Luo Tong farted with the two who couldn't eat enough, and after coming out of the machining workshop, he looked like he had something on his mind, and he was happy that no one disturbed him.

He is much older than the three of them, and he is a bit selfish, even if he lives in a dormitory, he is now a grasshopper on a rope, and the sense of distance between several people will not disappear in a short time.

It's a loose coalition of interests organized for the sake of eating meat!

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

Now that it has entered the late autumn, the air in the depths of Daba Mountain is extremely humid and clear, take a deep breath, and the moisture will go straight to the lungs, stimulating the depths of people's souls and making people energetic.

Several people are wearing gray overalls from the base, and in this era of only gray, blue, black and green, no one will pay attention to what they are wearing.

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

"By the way, how long does this have to go? There are old forests everywhere, so let's just drill into this forest. There should be no guard battalion nearby, and it is easy to be found from a distance...... "After walking for more than half an hour, the base has already been left behind by several people in the mountains."

Five or six semi-automatic parts are disassembled into parts, and the small ones are not tiring to put in the military shoulder bag, but the main part is wrapped in overalls and sandwiched under the armpits, and the road is not easy to walk, Qin Huaibao really doesn't want to go any further.

"Around here? This is on the edge of the base! It is estimated that there are not many rabbits and pheasants around. If you can get a roe deer or a roe deer, it's pretty much the same. Hare pheasant or something, how much do you have to get to feed our brothers! Don't forget, we don't have many bullets in our hands! "There are no people in this vicinity, and there is a small mountain village five kilometers away from the base, which is where the people from the base go to a small town more than ten kilometers away to rest.

Their goal is also around there.

Where people live, the garrison will leave enough space for them.

In these years, there is no such thing as a wild protected animal, and everything is a scourge, of course, the giant panda is still not able to pass the national treasure level, and it has to be shot!

Due to the inconvenience of transportation and sparse population in the mountains, even in that village, there are only about a dozen hunter families, and the guard battalion has given them enough hunting territory to stray, and if they strayed into the defense area of the guard battalion, they will not be directly knocked down by bullets.

"Quick, there's a pheasant there! So fat! Grunt! At least there must be more than two catties, hurry up, load the gun......" After walking for a while, the few people who didn't eat breakfast were listlessly walking in front of the machine, and the few nests that Luo Tong carried were to prepare the war supplies that they didn't hit any prey!

Following Luo Tong's finger, in the mountain forest on the right side of the road, on top of a eucalyptus tree whose leaves had begun to fall, rested a long pheasant, hooking up with a hen with its broken throat that looked a bit like a male duck!

All of a sudden, the morale was boosted!

"Hurry up, just enter the forest from here, and we won't have to do it after flying away in a while." There was a distance of seven or eight hundred meters from where the pheasant was, and after Qin Huaibao whispered, he pulled the five or six halves of the main body under his armpit outside, and drilled towards the forest.

"Liu Yijiu, what do you think?" Yang Shan watched Luo Tong follow him without hesitation, and instead of following, he asked Liu Yijiu, who was struggling with such a long distance and the meat flew over.

"This is it. It's just that we have reached the distance, and it is estimated that the pheasant has already flown away......" Liu Yijiu stared at Yang Shan, knowing his thoughts, and sighed in his heart.

To be a man, sometimes it's better not to be too shrewd.

After speaking, he followed the figures of the two and drilled into the forest.

Yang Shan looked at a few people, and always felt that this matter was too dangerous, in case he was caught, it was not cost-effective to be punished or something, if he didn't have a non-agricultural household registration and was sent back to his hometown, would he be able to live that life?

shouted at Liu Yijiu: "Tell them, I'm not going." I still have to be on duty today......"

After saying that, he turned around and walked in the direction of the base......

"Xiao Jiu'er, this muffler is installed like this, right? Luo Tong, this kid said that it was like this...... "When Liu Yijiu arrived, Luo Tong and Qin Huaibao had already assembled the five or six halves.

"That's it." Liu Yijiu nodded.

Hearing Liu Yijiu say this, Qin Huaibao nodded with satisfaction, pulled the bolt of the gun, and began to aim at the male pheasant on the tree more than 100 meters away.

This pheasant is also very limited, the movement of several people is so big, and for so long, they have been hooking up with hens in this tree, and they have no idea that danger is coming!

"How far is this sound really not going to come out?" After aiming for a while, Liu Yijiu and Luo Tong, who were lying on the side, were both heartbroken, not only did this bastard not pull the trigger, but put down the gun he was holding high, turned his head and asked Liu Yijiu in a low voice.

"My day!" Almost in unison, Luo Tong and Liu Yijiu scolded quietly.

This bastard, don't ask! The two of them watched the pheasant's saliva flow all over the ground, as long as the trigger was gently pulled, such a close distance, with the skills that these bastards practiced in the shooting range of the guard camp when they were fine, how could they eat this pheasant in their mouths!

"The principle of the muffler is that it is arranged on the inner wall of the airflow channel or in a certain way in the pipe, which constitutes a resistive silencer. When the sound wave enters the resistive silencer, a part of the sound energy is rubbed in the pores of the porous material and converted into heat energy to dissipate, so that the sound wave passing through the silencer is weakened. Although I designed this muffler with no special suction material, there are four layers, and all the small holes are not at different angles. When the bullet is discharged, the air flow itself will expand and spread at the muzzle, but the front outlet of our muffler is reduced, and a large part of the air flow will be dispersed from the small hole in the first layer of the muffler, and then spread out layer by layer, which will effectively reduce the air pressure......" Liu Yijiu was speechless for a moment.

This kid doesn't take school seriously, and he actually doubts his profession at this time!

"Boss, you just told me that the gunfire would be much smaller, wouldn't it? As for getting so much that we don't understand? Seeing that Liu Yijiu was dissatisfied, he immediately smiled and said.

Then he quickly aimed his gun again at the male pheasant, who had not yet flown away.

"Poof......" A slight inciting sound of wings sounded, and the pheasant flapped its wings and flew under the tree when Qin Huaibao pulled the trigger......