"Of course, in addition to the knowledge of thermodynamics, in the process of derivation, I will also use the relevant theories of advanced mathematics, calculus, ordinary differential equations, and even some concepts in physics and chemistry. ”

Zhou Jingming looked at the technician who asked the question with a smile, that kind of smile, as if he cared about mentally handicapped children, warm and considerate.

The technician who was staring at by Zhou Jingming couldn't help but twitch on his face, he felt as if he had jumped into a pit dug in advance, and the person who dug the pit was standing in front of him. I thought I was a hunter and the other party was the prey, but inadvertently, the roles between the hunter and the prey were so perfectly reversed!

The prey bared its fangs and began to fight back!

Not only the technician, but the rest of the people also looked confused, among them, there are very few people who have received higher education, and the names of calculus and ordinary differential equations are all heard for the first time, let alone the specific content.

The uneasiness in Li Tianle's heart became more and more intense, expecting that these shrimp soldiers and crab generals would definitely not be able to defeat Zhou Jingming, so he could only rely on himself.

Zhou Jingming didn't care what these people thought in their hearts, he didn't even take another look at the technician in the audience, and turned around directly.

"According to the first law of thermodynamics, heat does not disappear out of thin air and is not created out of thin air, that is, energy is conserved, so let's assume that all the heat generated in the clutch is absorbed by the friction plates. Of course, you can also argue that there must be a consumption of calories, so why should they all be absorbed?"

"That's a good question!" Zhou Jingming turned around again, with a confident smile on his face, "But I will prove later that such a rebuttal is actually pale and weak." ”

"Think of the clutch as a system in which heat circulates ......"

"From Clausius's discussion of the second law of thermodynamics, heat cannot be transferred spontaneously and without cost from a low-temperature object to a high-temperature object, which involves an entropy increase principle......"

"From the previous derivation, using the van de Waal equations, we can arrive at this step......"

…………

"The specific heat capacity of the asbestos material is 0.88, and if all these data are brought into the formula, it can be deduced that if all the heat generated inside the clutch is absorbed by the friction plate, the temperature of the friction plate will increase to close to 1000 degrees Celsius."

"Even if half of the heat escapes, the temperature of the friction plate will rise to more than 500 degrees Celsius, and according to the knowledge of engineering materials, when the temperature of asbestos exceeds 500 degrees Celsius, the internal fibers will be powdered, and it will be burned like this."

"So, comrade just now, do you now know why the friction plate was burned?"

This time, the narration reached ten minutes, and in these ten minutes, Zhou Jingming did not pause, he just wanted to overwhelm them in momentum and not give them any respite.

The technician nodded with difficulty, "Clear...... Clear. Just these few words, but it made his mouth dry. God knows what he went through in the last ten minutes, the first law of thermodynamics, the principle of entropy increase, Clausius, and the intricate mathematical derivation of the blackboard that was incomprehensible were really driving him crazy!

Why should I ask such a question?

He felt like he must be a fool now, and everyone else was watching his jokes.

Not only him, but for others, these ten minutes are also extremely difficult, in the clouds, no different from listening to the book of heaven, obviously they can't understand anything, and their damn curiosity has prompted them to prick up their ears and pretend to be good students.

Even Xu Guanglu and Zhao Ke, who graduated from standard bachelor's degrees, have little understanding of what Zhou Jingming said, and a lot of knowledge is completely beyond their cognitive range.

Zhao Keshang can keep his composure, but Xu Guanglu, who saw Zhou Jingming for the first time, turned the river and the sea in his heart, what kind of new employee is this, I am afraid that the technical experts in the department are just like this!

At this moment, looking at the high-spirited Zhou Jingming in front of him, Xu Guanglu thought of an idiom for no reason:

If you are a husband, you can't open it!

"It's good to be clear, if I don't figure it out, I can say it again. Zhou Jingming nodded with satisfaction, like a teacher who teaches disobedient students.

"No, I understand, I really understand, I don't need to talk about it anymore. The technician hurriedly waved his hand. He really couldn't imagine that if he listened to it for another ten minutes, he would probably go crazy.

The rest of the people also secretly breathed a sigh of relief, they were really afraid that that person would be hot-headed and give them a whole time, isn't it killing people!

"It's best to understand. Zhou Jingming looked around, "Next, does anyone else have any questions?"

Originally, Li Tianle arranged for the technicians to find faults, there were five of them, and the two who took the lead at this time had already died, and the remaining three, you look at me, I look at you, no one dared to stand up, and no one even dared to meet Zhou Jingming's eyes that looked at the world.

"Does anyone else have any doubts? Even if you bring it up, don't be wronged. Zhou Jingming asked again.

"A bunch of rubbish!" Li Tianle's face was gloomy, and he couldn't help but curse in his heart, and then stood up, and his face regained his smile,

"This little comrade is really knowledgeable, and he deserves to be a top student of Runzhou Institute of Technology, and he admires and admires him. Li Tianle didn't attack directly, and began to compliment him as soon as he came up.

Zhou Jingming watched coldly, Zhao Ke had specially reminded him to pay attention to Li Tianle yesterday.

The city is deep and scheming, this is Zhao Ke's evaluation of Li Tianle, and now it seems that this Li Tianle is really not simple.

Zhao Ke, who has been paying attention to Li Tianle's movements, couldn't help but get nervous at this moment. Li Tianle is not comparable to those straw bales just now, needless to say technically, the means are endless, even if he is against him, he does not dare to be careless, although Zhou Jingming is rich in theoretical knowledge, but if Li Tianle is interested in finding fault, Zhao Ke is worried, Zhou Jingming will be on the road.

"Just now, comrade, your argument is very wonderful, the two-plate clutch used in our car will indeed cause the friction plates to burn out, which has been theoretically proven, and we all admit this. Li Tianle still talked about him left and right.

Zhou Jingming frowned, what did he have to say?

"In view of the unreasonable clutch structure, the plan you proposed is to design the clutch as a single-plate clutch, which is no problem at all," Li Tianle smiled, and then changed his words.

"However, have you considered that the clutch structure has changed, and the rest of the assembly has been changed? The transmission mechanism of the engine, transmission, and drive axle should also be changed accordingly to match the change of the clutch?"

"In this way, do you want to solve the problem of breaking down, or are you negating all the previous work of our factory and tearing down everything and starting over?"