Early the next morning, Ren Xuefeng came to the gate of the military factory south of Dongfang Port, which was surrounded by barbed wire, and inside was a wall five meters high, surrounding the entire factory area. Pen, fun, pavilion www. biquge。 info, a 1.8-meter-tall man, walked to the door, took out an ID card and handed it to the naturalized soldier standing guard, and after the soldier carefully compared the photo with himself, he returned the ID card to Ren Xuefeng himself.

"Hello Comrade Senior, please register here." As he spoke, the soldier took out a registration book that had been hanging inside from the sentry box, opened it and handed it to Ren Xuefeng.

Looking at this visit register without a few rows, Ren Xuefeng smiled for no reason, he had not registered this kind of visit register for a long time, and this kind of system, which was full of the flavor of old time and space, seemed to have a sense of unreal dreams here. He magnificently jotted down his signature and ID number.

This kind of ID card is specially made in this time and space, and unlike the bamboo ID cards used by ordinary naturalized people, these plastic ID cards not only have the name and gender on them, but also a photo of the patriarch himself. This kind of commuting card, which was just a factory in the old time and space, is an existence that shocks the natives in this time and space, and it cannot be forged at all. And because of the "unfounded worries" of some of the patriarchs, there is a QR code in the lower right corner when making these ID cards, and the QR code of each patriarch's ID card is completely different, which is a book that the natives cannot understand.

After the soldier registered, he pulled one of the many pull ropes on the sentry box according to the department Ren Xuefeng was going to.

"What is this for?" Ren Xuefeng couldn't help but be a little stunned, "Don't you have a phone?" ”

"Report to the veteran comrades, on the other side of these ropes is to go to the communication room of each department with a bell, and you will know that there is a visit. You see, there's already someone over there. ”

Looking in the direction of the soldier's finger, sure enough, an old man walked over, and Ren Xuefeng recognized this as a veteran at a glance, because he was wearing a jacket that definitely did not belong to this time and space.

"Hello, is it Comrade Ren Xuefeng?" The visitor walked up to him and enthusiastically extended his right hand.

Ren Xuefeng shook hands with him and nodded at him and said, "Yes, according to the 162812019 order of the Executive Committee, I was transferred to the military industry department to provide assistance during this time. ”

"Welcome, I'm Ma Linming." The person who came introduced himself and walked inside with Ren Xuefeng. The sentry at the door hurriedly stood up and shouted, "Salute!" He gave a military salute.

Ma Lin Ming returned the salute, and then continued to walk inside, Ren Xuefeng nodded at the sentry, he is not from the army system, so there is no need to return the salute.

Walking into the factory, Ren Xuefeng couldn't help but be a little stunned, the area inside the factory is quite large, but it is also quite empty, and only three or four factories are seen inside. Each plant is about 100 meters long, 20 meters wide, and about 8 meters high. Unlike most of the buildings he usually sees in the port of Vostochny, the buildings in the military factory are built of colored steel plates and steel beams.

"No way," Ma Linming smiled, he knew what Ren Xuefeng was thinking. "We're not just producing rifles and cannons, we're producing all kinds of ammunition, you name at this." Saying that, Ma Linming pointed to some deep ditches in the factory room and said, "This is an explosion-proof ditch, if something really goes wrong, everyone has to run to the explosion-proof ditch to hide." ”

"This?" Ren Xuefeng felt a little chill on his back, "Did there really happen an accident here?" ”

Ma Linming turned his head to look at him in amazement and laughed, "There have been a few scenes, and once when I was making thunder-mercury, there was a sudden explosion in the solution, and the beaker was shattered. ”

Ren Xuefeng immediately made up for the miserable condition of the operator covered in glass slag, but Ma Linming obviously knew what he was thinking. "It's not that scary, these things used as gunpowder explode with a terrifying sound, but the explosion that day was not so terrifying, it just cut a hole in the right upper arm of a veteran operator, and two band-aids were done." Saying that, Ma Linming smiled lightly. "By the way, Lin Shenhe transferred you here this time to ask you to assist in analyzing an accident, but I hope you can keep this accident secret before reporting it."

"Oh," Ren Xuefeng nodded, "I'll keep it a secret." ”

With that, the two of them walked to the innermost factory. Lin Shenhe greeted him, shook hands with Ren Xuefeng to welcome, and then the three of them walked into the factory together.

The factory was clearly divided into several areas, and they walked to one area while chatting about non-nutritious topics such as the weather. A large canvas in the middle of the area was covering a pile of things.

"That's right, a few days ago, our troops used flying thunder guns to attack the fortified positions during the encirclement and suppression operation in Wu'an Village, but one of the two guns brought with us exploded violently during the first firing, killing six soldiers on the spot, and making the Executive Committee doubt the safety of the army's weapons." Lin Shenhe said and pulled the sail to the side.

Under the canvas was a pile of all kinds of steel rags, the thick barrel part of the muzzle was blown like a blooming flower, the middle part of the barrel was blown a large opening, part of the barrel parts were probably blown away by the explosion, and there was a large hole in the middle of the barrel. In comparison to these, the base part of the gun is quite complete, and even the hole of the fire pipe is not deformed.

"This ......" Ren Xuefeng was a little stunned, "This is also too bad, right?" ”

"This is already very good, the people in the neighborhood are basically injured in their internal organs, and I still have a little dizziness and vomiting blood." Lin Shenhe coughed twice and continued, "Because the launcher died in the explosion, we have no evidence of whether the other party is operating in accordance with the drill code, we can only analyze the broken barrel to restore the scene when the accident occurred, if the cause of the accident is not investigated, no one will be able to use the artillery with peace of mind in the next operation, and it will have a serious impact on the next operation." ”

"Then ......" Ren Xuefeng was stunned for a moment, "Why are you looking for me?" ”

"You're the only one in the Walkthrough file who has a safety engineer certificate." Lin Shenhe replied with a smile.

The latter smiled a little, "Isn't it?" "Ren Xuefeng is now in a difficult situation to ride a tiger, his safety engineer certificate was taken a long time ago, at that time the degree of safety engineer was not as important as later, he can speak English as a native language slippery he has read several parts of CSI in high school, for accident analysis and this kind of thing is originally more proficient than ordinary candidates, plus spend a little more money to get it. However, with the development of society, the safety factor has been paid more and more attention, and the assessment of safety engineers has become more and more difficult, and he later gave up this profession and turned to develop in an international trading company. If it weren't for the fact that this certificate was registered in the archives with him when he reported before the crossing, he himself would have forgotten that he had obtained this certificate.

He hurriedly said this matter, Lin Shenhe and Ma Linming looked at each other, and after being stunned for a few seconds, Lin Shenhe nodded and said: "Since you can come from that examination room, your ability to analyze accidents must exceed that of ordinary people, and others are afraid that they can't see the problem at all." You can help us take a look first. ”

Ren Xuefeng, who was driven to the shelves, had to walk to the cannon body and take a closer look. "The barrel apparently experienced two explosions." He pointed to the marks of the blast in the middle of the barrel. "This is where the first explosion happened, you see this place was torn apart because of the explosion."

Lin Shenhe leaned over and took a look, many parts of this place had flown out, and some of them that had not flown out were diverging and waving around.

"This is not something that a propellant can blow up." Ma Linming said, pointing to the gunpowder residue in the barrel. "This is clearly a rapidly burning detonating charge, not a slower-burning propellant. The colors are different. ”

"That's right," Lin Shenhe thought as he spoke. "If the detonator has already exploded here, why would it go to the front and explode again?"

"Hey, are you saying it's the residue of a projectile?" Ren Xuefeng scraped the wall of the twisted pipe at the front of the barrel, and then put it in his hand to compare it with the residue scraped off by Ma Linming.

"It looks very similar," Lin Shenhe compared, "but the scraped off front of the barrel also has the residue of the detonator mixed in it." You see, the colors are a little darker. ”

"The second explosion was a little later than the first, you see here." Ren Xuefeng pointed to the middle of the barrel, "When the front end of the barrel exploded, the power of the explosion not only burst the barrel in front, but also leaked out from here. Lin Shenhe tilted his head sideways and carefully compared, the wall of this piece of pipe was indeed twisted to be flatter than other positions, obviously blown straight in front of the huge air current, but the front end obviously had traces of bulging.

"At least that's what I can see now." Ren Xuefeng shrugged, "If possible, it's best to analyze the gunpowder residue on the pipe wall to see what the inside burns when an explosion occurs." ”

"I'm afraid this is hopeless, and this needs to be analyzed by the chemical department." Lin Shenhe also shrugged his shoulders, "We don't have enough chemical instruments now, so we can only analyze it." ”

"I don't think it'......" Ma Linming suddenly stopped talking in the middle of speaking, causing both of them to look up at him.

"Why do you have two explosions in one barrel?" Lin Shenhe asked him.

"Yes," Ma Linming nodded, "The principle of most guns is as simple as death, it is nothing more than the burning of the rear propellant to throw the warhead out. There are only two cases of exploding bore: one is overloading, and the other is ...... Reloaded twice. ”

Lin Shenhe was stunned for a moment, "Won't it?" "Artillerymen must at least memorize the artillery drill code before taking up their posts, and how to operate must be practiced step by step and many times before they can be officially operated. How did it reload twice?

"Remember? In the past, many mortarists used to hold the shell to the muzzle of the gun, then let go, and when they heard the sound, they just shoved the next shot in. There were many such accidents during World War II, and the noisy battlefield environment made the launcher not know whether it was fired or not, so the second shell was put in again, and the result was a bore explosion and casualties. Ma Linming still remembers many such accidents deeply. Although he was born in an armored army, he still had a lot of communication with soldiers with mortars, and knew that mortars had a special mechanism to prevent repeated reloading.