After Lu Chen finished remembering what he didn't understand, he was ready to leave, not that he was tired of studying, but that he had been in the library for too long, from the library where he arrived at six o'clock in the morning, it was now past eleven o'clock.

If he stays any longer, he is afraid that he will miss the course taught by Chai Yun, and once he is late and annoys Chai Yun, I am afraid that he will have no place to cry, don't look at her always looking very good on the surface, but in fact she is strict.

Chai Yun was born in the army, and the means of rectifying people are also endless, and she has also worn many thorns, and those people are finally obedient to him, and they can be as honest as they want.

Before leaving, Lu Chen put the three books on the table neatly, which is also a rule of the library, and anyone must abide by it.

Reading at the library doesn't require you to return the book, if you want to leave, just close the book and let the library staff know that you have finished reading the book.

If you're just leaving for a short time, like a trip to the bathroom, then you just need to open the book and no one will take it away.

Since the place where Lu Chen chose to read was the eighth floor of the library, he planned to take the elevator downstairs, but when the elevator door opened, there was only Ren Jie in the elevator, and the two directly took a photo.

"Stinky boy, you're here too, are you interested in mecha design?" At this time, Ren Jie, who was standing in the middle of the elevator, spoke, and he was very curious that Lu Chen could come here to study.

Because most of the students who enter the library to study in Tianxing Academy are sophomores or above, first-year students are generally too playful, and few people can calm down and study honestly in the library.

There are many newly admitted students who enter the library not for the purpose of reading, but to make girls, Ren Jie has been complaining about this kind of thing for a long time, but the senior management of the academy seems to have acquiesced in the behavior of the students, and has never taken the initiative to stop this matter.

"Instructor Ren Jie, hello, I came here to learn mecha design, I am very interested in this aspect of things, you see if you have time now, if you can, I hope you can help me solve my doubts."

Lu Chen greeted Ren Jie very politely, and then mentioned his request to Sister Ren, but the opportunity to come to the door was not asked, and if it could be solved earlier, he would be able to feel at ease earlier.

"Is that all?" Ren Jie casually flipped through the notes in Lu Chen's hand and asked curiously.

"Yes, the first time I came, the learning efficiency was inevitably a little low, there were many places that would not, it took a morning of time, and these places still haven't been able to solve the problem."

Lu Chen bluntly said what he didn't know, through these two weeks of study, he also has a certain understanding of Ren Jie's character, therefore, he also knows how to speak when facing Ren Jie.

"Okay, it's not a big problem, I'm about to go to the cafeteria to eat, you also go with me, and I'll explain these problems to you clearly during the meal, I also encountered these problems back then, and you'll understand when I talk about it later."

Ren Jie warmly sent out an invitation, he didn't have any special requirements for eating and drinking, the college's large canteen could meet his dietary needs, in his opinion, as long as he could eat enough, it was enough.

He has been in Tianxing Academy for twenty years, and he has also eaten in the cafeteria for twenty years, and it has become a habit for him to go to the cafeteria regularly every day to eat.

"Uh, okay." Lu Chen was also a little hungry after studying for so long, and besides, he had to participate in high-intensity training in the afternoon, and only when he was full of food and drink could he have enough physical strength to complete the training.

The two of them took the elevator and came to the first floor in the blink of an eye, and the college bus happened to stop next to the platform not far away, bringing a carload of people to the cafeteria in just three minutes.

Ren Jie found a random place to sit on the first floor of the cafeteria, and then explained the questions on his notes to Lu Chen.

He spoke in great detail, the meal had been served on the table for a long time, and he didn't show any urgency, and by the time Lu Chen understood it thoroughly, the food had completely cooled down.

"Instructor, why don't I order a few more hot dishes, and I'll eat these cold ones."

Lu Chen glanced at Ren Jie apologetically, he didn't expect that just a few questions would take Ren Jie more than half an hour, and he knew that he would finish his meal.

"Haha, how can there be so much attention, no matter what, these are all grains, and they are not eaten as cold and hot? Spending food is not a good act. ”

Ren Jie is also a veteran of the battlefield, not to mention cold meals and cold dishes on the battlefield back then, even if it was a meal stained with sand, he had eaten a lot.

Because once the war starts, many things can not be taken into account, you can only go hungry to participate in the battle if you don't eat, anything can happen on the battlefield, and maintaining sufficient physical strength is the capital to survive.

Otherwise, in the long run, your body will collapse before you can repel the enemy.

"That's good." Lu Chen nodded and didn't say anything more, silently bowing his head and eating. There was not much time, and the two of them ate all the food on the table.

Through this lecture and dinner, Ren Jie's opinion of Lu Chen has changed a lot, the last time Lu Chen took such a means to kite him, he subconsciously regarded Lu Chen as the kind of person who likes to play clever.

He felt that Lu Chen was like a thorn, and he had always called Lu Chen a stinky boy, but now it seemed that he did have some subjective assumptions.

Next, Ren Jie turned on his light brain and picked out a design drawing of a B-level mecha for Lu Chen to analyze the quality of the mecha, this design drawing was the work of a student he once taught, he liked it very much, so he kept it.

Lu Chen looked at the drawings for a while, and was full of praise for the mecha designer who was able to design this mecha.

This mecha is very beautiful in appearance, and at the same time takes into account the performance of the mecha, and does not choose to lose the performance of the mecha for the sake of good looks, and in general, the design of this mecha is very successful.

The only fly in the ointment is the legs of the mecha, and the legs of this mecha should be equipped with a thruster separately, so that the flexibility of the mecha will be greatly increased.

You must know that flying into the sky is only available to A-level mechas, and mecha below A-level can only glide in the sky for a while, and this B-level mecha can fly is already quite good.

"Yes, seeing this proves that you're talented, but don't forget, it's just a B-rank mech. The materials used in its fuselage limit the speed at which it can fly, and if it were to fly according to the standards of A-class mechs, I am afraid that it would have fallen apart long ago. ”