"Stop."

Ji Xinghe led Xinxin to stand behind Shen Mu, and said out when Shen Mu's fingers wanted to turn up again: "That's it." ”

Shen Mu's finger stayed on the third-to-last part of the list of requirements for Operation Interval 109: a maintenance item requirement. The estimated completion time of the system is 864 hours. The hour here is the time unit of the Azure Star, and the sunrise and sunset on the alien star are completely different from the Azure Star, and the day is not twenty-four hours, but it actually has no effect, because everyone basically lives in the underground base and rarely sees the sun.

Although this time is not the time for the base's artificial intelligence program to combine advanced technology such as robotic arms and machine tools to repair the required parts, it is only because the relevant resources are allocated according to priority, and 864 hours are almost all waiting time in line, but it can also be seen that the maintenance of this part is very difficult.

"Lao Ji, can you do it?" Shen Mu glanced at Master Liu next to him, and asked in a low voice, "This is beyond the level of an eighth-level fitter, even if your hands don't shake, you may not be able to complete it." ”

Ji Xinghe noticed that Master Liu pricked up his ears, and suddenly regretted that he had pretended to be that force just now, but he pretended to be forced and had to finish it when he knelt.

"As I said, the reason why I am an eighth-level fitter is because the highest fitter is only eighth."

Ji Xinghe actually has a way back now, and the advantage of being old is that if he admits defeat now and goes to repair the car, no one will really go to him for trouble. But he wants to make himself have no way out, because life is like this, if you take a step back, you will completely lose the possibility of going further, and there may be new opportunities when you are young, but Ji Xinghe is really not young, and it is natural for others to call him Lao Ji.

"Okay, okay, you're stubborn."

Shen Mu complained a little, but he still explained some key knowledge points to Ji Xinghe at the first time, as an expert mechanic at the second lieutenant level, he can treasure all the standard mecha of the Federation and all the parts in it, which is why Ji Xinghe asked Shen Mu to help choose.

Ji Xinghe's eyes brightened as he listened, because he found that what Shen Mu said was exactly the same as the information he could see. And because of the level of secrecy, there are some information that cannot be seen, and Shen Mu also told him all of it.

I can do it.

"Come, bring me this broken part." After listening to this, Ji Xinghe looked at Master Liu: "If I can't fix it, I'll buy you a new one immediately." If you don't believe me, I can transfer the contribution points to you right now. ”

Master Liu, who felt that he was almost touched by porcelain just now, how dare he ask for Ji Xinghe's deposit, he hurriedly nodded and agreed, and said that he was willing to provide all the tools, anyway, the tools needed by the fitter are not uncommon, and he has spare ones here.

"Repair it, repair it, don't want your contribution points if it's broken, we don't have time to repair it anyway, now the queue time is more than 800 hours, maybe more than 800 hours in a few days, there will be a queue cut after the priority, our original plan was to wait, but we can't wait to directly replace the parts without repairing it."

Master Liu looked at Ji Xinghe, who was the same generation as his grandfather, and suddenly sighed as he spoke, "Mr. Ji, I'm really not embarrassed for you, I'm really short of eighth-level fitters, all the operation areas here are missing, and the situation in other bases is the same." But your age...... We don't dare to gamble, because if we lose, we will die. ”

Ji Xinghe was relieved to see someone go to the warehouse area to pick up the damaged mecha parts.

"Master Liu, I didn't mean I was too excited just now, I can understand you, I'm sorry, but I really need this opportunity, I won't let you down."

The most important among you is not Master Liu, Shen Mu, and Su He, but Ji Xinghe's granddaughter, while waiting for others to prepare, he squatted down and began to talk to Xinxin, because he will have to work seriously in a while and have no time to take care of Xinxin.

Shen Mu and Su He retreated to the side with interest, Shen Mu, who originally wanted to emphasize some more important points, was actually pulled by Su He before retreating, and the two of them stood outside the line of the No. 109 operation section.

Su He asked in a low voice with some curiosity: "Isn't the eighth-level fitter very powerful?" How do you judge whether Lao Ji is good or not, does it depend on what processing accuracy? millimeters or something. ”

Shen Mu looked at Su He in surprise: "You don't know this?" ”

"I don't know very well, I just know that there is a machining accuracy is very important, that is, the actual size, shape, and position of the surface of the part after processing are consistent with the ideal geometric parameters required by the drawing, and the smaller the number, the better."

"Yes, this is indeed processing accuracy, and nanometer is already the limit of our human technology."

"That Lao Ji is an eighth-level fitter, can he reach the nanometer level?"

"......" Shen Mu, who didn't want to explain this problem, noticed that Su He's camera was turned on, and thought that he would inevitably appear in Ji Xinghe's documentary in the future, so he replied seriously: "No, don't say that Lao Ji is an eighth-level fitter, even if he is a ninth-level fitter as he said, a tenth-level fitter will not work." Because the limit of human machining accuracy is only three decimal places in the millimeter. ”

"In other words, a machining accuracy of up to 0.001 mm can be achieved?" Su Heleng said: "But one millimeter is equal to one million nanometers, one nanometer is 0.000001 millimeters, and the gap between two zeros and five zeros is too big, right?" ”

Shen Mu took a deep breath, calmed down the complicated emotions of facing the layman's low-end problems, and continued to explain seriously: "Not only is the gap between two zeros and five zeros very large, but the gap between 0.009 and 0.001 is also very large...... Let's put it this way, I can achieve 0.009 mm manual accuracy, but I can't guarantee that I can achieve 0.001 mm manual accuracy, and I don't mean one time, but in my lifetime. ”

"You?"

"What's wrong with me?" Shen Mu held his head high: "I'm Shen Mu, the youngest second lieutenant mechanic in the Federation, I just came to the alien star and got a subsidy of 30,000 contribution points, do you know why?" ”

"Why?"

"Because the maximum subsidy for special talents is only 30,000, and I ...... Wait a minute, cut out this paragraph and start again. Shen Mu coughed twice and then said with a serious face: "Some people can get a subsidy of 30,000 contribution points because they are only worth 30,000, and I can get a subsidy of 30,000 contribution points because the maximum subsidy of the federal government for special talents is only 30,000." ”

"......" Su He reminded helplessly: "Everyone who can come to the alien front line is a hero, is it a little inappropriate to say that it is worth it?" ”

"Huh? Isn't it appropriate? That paragraph was also cut out, and I said it again. ”

"Don't talk about this, if you want to learn from Lao Ji, you can't, Lao Ji can rely on Lao Ji and sell Lao Ji, can you?" Su He corrected the topic back and asked: "Since those robotic arms, machine tools, lithography machines and so on can reach nano-level processing accuracy, what is the point of manual processing accuracy is only millimeter-level fitters?" In addition to the reasons that Master Liu just said, do you have anything else to add, Second Lieutenant Shen Mu? Or, to sum it up? ”

Shen Mu frowned and thought about it, and only after a while did he look at the camera seriously.

"Where the existence is reasonable, three years of a fine turner, ten years of a rotten fitter, the existence of the fitter itself must be reasonable, there is an inevitable demand, Master Liu said that those are the meaning of the existence of the fitter. And when it comes to the level of an eighth-level fitter like Lao Ji, he can even be called the god of craftsmen. Yes, in terms of machining accuracy, Lao Ji cannot be compared with nano-level machine tools and robotic arms, but machining accuracy is only one of the judging criteria, it is important but not all. Because there are only 0 and 1 in front of the machine, and we need not only 0 and 1, but also the judgment of the eighth-level fitter beyond 0 and 1. ”

Su He didn't expect Shen Mu to say this, although there were some flaws, it was already very good, so he asked, "What else?" ”

Shen Mu searched his intestines and scraped his stomach, and his brain was sweating before he held back another sentence: "An eighth-level fitter can make a nano-level machine tool and a robotic arm, but a nano-level machine tool and a robotic arm cannot make an eighth-level fitter." ”

When Su He gave a thumbs up, the damaged mecha parts had already been taken, Ji Xinghe stood up next to Xinxin and began to wear the work clothes that he had taken at the same time, while Xinxin trotted to Shen Mu and Su He, stood outside the operation area and turned around and raised his fist at Ji Xinghe.

"Grandpa, come on."

After this sound, the No. 109 operation area once again entered the working state, no one went to see the repair work of Ji Xinghe, and Master Liu and the others had wasted a lot of time.

Time passed little by little, but Ji Xinghe looked like there was no progress, seeing that it was about to be time for everyone to get off work, and the lieutenant colonel officer had already appeared nearby, Shen Mu raised his feet a little anxiously, he wanted to enter the operation area again and then point to Ji Xinghe.

But as soon as he took a step, the hem of his shirt was grabbed by a small hand, and when he turned his head, he saw Xinxin with a serious expression, looking at him with firm eyes, and his little head shook very hard from side to side, as if he was using this behavior to express her attitude.

"Uncle, my grandfather said that you can't help him all the time, you have your own work, responsibilities and obligations, and my grandfather must have it too."

Shen Mu was stunned, at this time, a long time had passed since Xinxin left Ji Xinghe's side, she still remembered Ji Xinghe's explanation, and executed it perfectly?

This kid has something, is he a genius?

At this moment, Ji Xinghe's calm voice suddenly sounded in the 109th operation area.

"I've fixed it, Master Liu, you are tired and checked, it's okay to wait a while, I'm not in a hurry."

Before Master Liu and the others could react, when they looked at Ji Xinghe in astonishment, Shen Mu was anxious.

"Lao Ji, you are really, the child hasn't eaten yet, are you not in a hurry, can the child not be in a hurry? Hurry up, Master Liu, please take your time, if you really don't have time, I'll do it, I'll test it. ”

"Didn't eat?" Ji Xinghe's expression suddenly became stunned, and then his face was full of chagrin and panic: "I'm sorry, Xinxin, grandpa forgot the time as soon as he worked, let's go, grandpa will take you to dinner." ”

"Xinxin is not hungry, grandpa has worked hard."

When Xinxin spoke, Ji Xinghe had already stepped out of the operation zone quickly, took her hand, and then walked out slowly with her.

Everyone else was stunned, Su He's task was to follow Ji Xinghe, but he felt that the detection of that part was also very important and wanted to stay and shoot, so he hesitated. Shen Mu shouted directly: "Lao Ji, wait a minute, this, this is also very urgent, didn't you just start beating people, how can you just say that you will leave." ”

Ji Xinghe didn't look back, he didn't care about Shen Mu's unintentional slander, he held Xinxin with his right hand, and raised his left hand and swung it behind him twice.

"I've fixed it."

He said that he repaired it and left with his granddaughter without looking back, not only because he was confident, but also because he felt that it was more important for his granddaughter to eat on time, and that eating on time was the only way to have a good body. With a kitchen knife in the kitchen at home, he went to steal a single starship to come to the alien star to send him to death, but after finally coming to the alien star, he stayed in the underground base, isn't it just so that his granddaughter can take care of his body?

Granddaughter, you have to grow up quickly and healthily, because there is not much time left for grandpa to avenge your father.