Just while everyone was attracted by the argument between Wang Erzhu and Liu Jianzhi, Qin Zhenhua quietly exchanged Liu Jianzhi's water cup for a tanuki for the prince, which was just a small prank, as for now, Qin Zhenhua looked at the tank that had just come over with the pleasure just now.

In appearance, it is very similar to the 59 tank, with the same round turret and the same five pairs of load wheels, but there are many differences in details.

For example, on its turret, there is a round headlight, this headlight is the infrared headlight used for night battles, put an egg in front of it, and it will be baked in more than ten seconds.

At this time, its barrel was facing Qin Zhenhua, Qin Zhenhua twisted a perspective slightly, and he could see the inside of the barrel, there was no clear rifling, Qin Zhenhua's eyes immediately revealed a kind of joy, this is the first time I have seen the 69 tank.

Although it was impossible to communicate with foreign countries in previous years, it was still striving for development at home, and it was unrealistic to rely on 59 tanks to fight the world. Especially after getting the T-62 that year, there was a copy of the smoothbore gun in China, the caliber was still 100 mm, and this unrifled smoothbore gun was made, which was installed on the improved hull, and then named the 69 tank.

It's just that when it was finalized, the country had begun to shift its focus to the economy, and the army had very few orders, and the army already had a huge lineup of 59 tanks at this time, tens of thousands of 59 tanks, enough to form a rolling torrent of armor, so the number of 69 tanks was very small, and so far, the output of the factory was only more than 100, as for the return to the factory for maintenance, this was the first one.

This 69 tank has been repaired in the factory for half a month, before and after, the power part has been hoisted five or six times, and after each change, Liu Jianzhi is full of confidence, but when he goes out to test the car, he always finds that something is wrong.

There are more and more parts to change, at the beginning, only the bearings were replaced, and then the gears were replaced, and then later, more were changed, the latest time, Liu Jianzhi simply applied for a new gearbox to install it, I always thought it would be no problem, right? Who knows, just loaded in, only a few kilometers of test drive, and it started to ring again!

Due to the small production, it is even less seen in the maintenance workshop of the factory, Qin Zhenhua came here for three days, and it was the first time he saw the 69 tank. Like his father, Qin Zhenhua is also a tank fan, and foreign tanks can be clearly distinguished, let alone domestic ones.

"Master Liu, these 59 tanks, and this kind of fault that can't be repaired?" Apprentice Huang Chuanchuan held a cigarette in his hand, respectfully handed it to Liu Jianzhi's mouth, and said to Liu Jianzhi while wiping the match.

"59 tanks?" Liu Jianzhi looked at Huang Chuanchuan with dissatisfied eyes: "It's been half a year since you repaired the tank with me, don't you know what the 59 tank looks like?" ”

After speaking, Liu Jianzhi took a puff of cigarette, this cigarette stimulated his lungs, so that he didn't have that feeling of gagging, thinking about the thing he had just drunk, he glared at Liu Dajun fiercely again, and then turned around and continued to put on his master's shelf.

"I'm going to put you to the test now, and see if any of you know what kind of tank this is?"

As a master, you have to use your rich knowledge and experience to make your apprentices worship, and now is a good opportunity.

His eyes looked at his apprentices, in the eyes of these apprentices, the round turret, five pairs of load-bearing wheels, isn't it the 59 tank? What else could there be besides 59 tanks?

No one answered, the master had already said that the answer for the 59 tank was incorrect.

Liu Jianzhi continued to turn his head and came to Qin Zhenhua's body: "Forget it, you don't know anymore." ”

"100 slips, infrared headlights, these two points can tell that this is a 69 tank." Qin Zhenhua said lightly.

69 tanks? This is actually 69 tanks? Those apprentices suddenly opened their eyes, the longest they came, they have been here for half a year, they just don't know, there are still 69 tanks?

"What is 100 slips?" Huang Chuanchuan asked.

"It's a 100mm smoothbore gun, come here, see what's the difference between this barrel and our 59 tank?" Qin Zhenhua said: "Look at it, is there no rifling in it?" ”

Just looking at the barrel outside, the length and thickness seem to be the same, but this glance into the barrel immediately made many people nod, yes, there is really no rifling inside.

"Without rifling, how can the cannon be stabilized?" Huang Chuanchuan continued to ask.

Rifling is a great invention that allows bullets, shells to rotate out and remain stable, and it is precisely because of rifling that the range of guns will increase by leaps and bounds, but now, with the development of technology, tank guns with rifling removed have also become popular.

"Infrared headlights, what are they?" Someone asked again.

Liu Jianzhi was very annoyed, he originally planned to show off in front of the apprentice, but Qin Zhenhua stole the limelight! It's worth it!

"Ahem, ahem." Liu Jianzhi coughed twice, and his apprentices immediately understood, and quickly left Qin Zhenhua's side and returned to Liu Jianzhi's side.

Liu Jianzhi squinted and glanced at Qin Zhenhua: "I can only talk about parameters, what's the use of that, if you really have the ability, you have to be able to cultivate." ”

We are here, it was originally a maintenance workshop, this tank, Liu Jianzhi repaired it several times, but it was not repaired, and this time, he gritted his teeth and replaced the entire gearbox, more than 20,000 yuan! As a result, the glitch remains!

Liu Jianzhi was already very annoyed, and now seeing Qin Zhenhua pretending to be here, his heart was even more annoyed, and the words he said were a little sour.

"What's that, it's not a big deal to repair the 69 tank." Qin Zhenhua said.

This sentence made Liu Jianzhi speechless, and he only felt that his stomach began to churn again, was it in his stomach or in his lungs?

"The wind is so strong today, and I'm not afraid that the wind will flash my tongue, you, an apprentice who has been here for three days, just say that it's easy to repair 69 tanks?" Liu Jianzhi gritted his teeth and said to Qin Zhenhua.

"That's right, it depends on who will fix it." Qin Zhenhua said: "I don't know where the fault appears, and I change the parts to repair it indiscriminately, which will only get worse and worse, and I have to repair it by someone who really understands it." ”

I don't know the fault, change parts indiscriminately, this sentence is rooted in Liu Jianzhi's heart, and his face is ugly: "Okay, you said you would repair, then you can repair it now, I don't believe it, you are an apprentice who has just come in for three days, and you can still repair 69!" ”