Chapter 697: Leave him alone, just stock it!

The thermal protection of scramjet is one of the most important key technologies. For ordinary engines, it puts forward new requirements on the protective materials. The temperature of the hot air flow in the engine runner reaches 3000K, which is almost two thousand seven. It is about one hundred and twenty degrees, and the temperature of the combustion chamber reaches 3,600 K.
　　 If only the temperature needs to be solved, Xu Mang will not come over. The complex laser wave system, combustion pulsation and oscillation in the scrambling engine can easily prevent the combustion chamber from generating too high temperature, which will destroy the entire combustion chamber.
Judging from the information provided by Director Guo to Xu Mang, the use of cooling structure to reduce the temperature has been considered, but it will increase the weight and reduce the performance of the engine. Moreover, the special structure of the scramjet engine cannot be applied to the cooling mode. Difficult to apply on a large scale.
　　 The easiest way is to change the structure or improve the performance of the thermal protection material. Director Guo led the team and chose the second direction to improve the material performance.
Owing to time constraints,
　　 In addition, Xu Mang's own propulsion technology and aviation power skills are not enough, so he can only make selective breakthroughs, and some technologies need to be solved by himself.
First of all,
Xu Mang put forward six problems to be solved, heat resistance, oxidation resistance, thermal mechanical load resistance, corrosion resistance, technical preparation indicators, and the light weight of the last item on the left. The six indicators represent six problem.
　　 "Damn..."
"I overestimated myself by mistake." Xu Mang clutched his hair and blushed at the vow he had just made. This is the same as the Taibai cat who owes more than a hundred chapters, saying that he can pay off in the New Year, but now he doesn't mention anything. What is the difference? ?
　　 "Shame!"
　　 "I really blush for myself!" Xu Mang sighed. According to his calculations, the skill value was actually just right. It just took a little more time, but he forgot to deduct the skill value when using the'Beast Mode'.
just now,
　　 can only be written slowly at a tortoise speed, starting from the antioxidant...
　　For antioxidants,
　　 Xu Mang has a wealth of knowledge. According to the characteristics of scramjet engines, it needs to absorb oxygen in the atmosphere for oxygen-enriched combustion. The high-speed airflow will also generate atomic oxygen due to shock waves, which directly leads to more serious oxidation.
　　In terms of thermo-mechanical load, the uneven distribution of heat flow on the runners causes thermal stress. If the airflow speed is fast, noise load will be generated... Therefore, the material must not be deformed to avoid affecting the engine performance.
　　唰唰唰,
　　 Xu Mang wrote for almost an hour, and finally understood the six questions. Originally thought there were not many, now it seems... all problems!
"Ugh..."
"I don't want to work hard...or just be a salted fish." Xu Mang slumped in his chair and looked up at the ceiling. Actually, he doesn't need to work hard anymore. After marrying a wife who can make money like this, he still works hard. Kind?
　　 "No!"
　　 "There is no dream in life if you die, isn't it really in vain?" Xu Mang washed his brain for a while and started working hard again.
　　 only five minutes,
　　┻━┻︵╰(‵□′)╯︵┻━┻
　　 Continue to upgrade!
　　 Xu Mang picked up a book on propulsion technology and aerodynamics, covered it directly on his face, and then sat there and fell asleep.
　　Propulsion technology and aerodynamic skills +3
　　Propulsion technology and aerodynamic skills +3
　　...
　　 In a blink of an eye, a week passed,
　　 Xu Mang lives like a ghost all day, sleeps crazily during the day, spends two hours at night making phone calls with Xiaoman, and then continues to cover his face with books on propulsion technology and aviation power, frantically acquiring the corresponding skill points.
　　 this week,
　　 The effect is still very significant. Through Xu Mang’s efforts, he is only 10% away from being proficient in propulsion technology and aerodynamics.
"Jingle Bell!"
Alert rings,
Xu Mang glanced at the time. At half past eight... he was so late again. Perhaps Xu Mang was a non-staff person. Director Guo basically closed one eye for his lateness or absence from work for a day. Sometimes unfortunately, when Xu Mang was late or left early at the door, he could only greet him with a slight face.
　　 put on the clothes and pants, and rinsed briefly,
Xu Mang drove the car to the work place, passed a golden arch, went in and bought two breakfasts. When he came back, he found that the car was ticketed with a ticket. The speed was very fast. If he came back a little later, he would probably be in the car. To be dragged away.
　　While driving and eating hamburgers, when he passed an intersection, suddenly there was a flash in front of him. Xu Mang looked dazed, as if... he was photographed.
at last,
　　 arrived at work place,
　　 With a light pace, he slowly walked away from the building, so he could not die... I met Director Guo.
　　"Xu?"
　　 "You just came?" Director Guo asked with a smile.
"what?"
　　 "Huh!" Xu Mang nodded and said seriously: "There is a traffic jam."
　　"..."
"Next time you come early, there will be no traffic jams." Director Guo was helpless. The person in front of him couldn't criticize at all. He didn't even have the power to point fingers. He could only say to the side: "You are very close to the workplace. Yes, come early and basically you won’t encounter big traffic jams."
　　 Xu Mang nodded, and said with shame, "But I can't get up!"
　　"..."
　　 "That...then..." Director Guo didn't know what to say for a while, looked at Xu Mang awkwardly, and said with a wry smile: "What's the progress?"
　　 "Material?"
　　 "It's almost... Give me two more days." Xu Mang sucked the soy milk and said absently, "It's basically over."
　　The words fall,
　　 took another cup of soy milk and handed it to Director Guo.
　　 "Director Guo?"
　　 "Drink?" Xu Mang said with a smile, "It's a bribe."
　　 "Ahem!"
"Don't be thirsty... you can keep it for yourself." Director Guo said earnestly: "Xiao Xu...it's not that I am overhearted. I am fully planning your work for fifteen days, but these fifteen days... You know the situation in your own heart, but you told me it will be over in two days?"
"Yes indeed!"
　　 "What's wrong?" Xu Mang asked curiously: "There is nothing wrong, right?"
　　"..."
　　 "Nothing...Go to work." Director Guo nodded, and went up to the third floor with Xu Mang.
When he came to the door of his office, Director Guo stopped suddenly, looking at Xu Mang's back, he couldn't help frowning. He felt that this young man... seemed to float, drifting a little too much, but there was no way to change positions. Think about it, if you have achieved so much at his age, you might drift higher, farther, and more indulgent than him.
　　 walked into his office,
　　 Director Guo pondered for a moment, silently picked up the receiver of the landline at hand, and called his old friend.
"Hey?"
　　 "Lao Yang...your niece and son-in-law seem to be... not working?" Director Guo didn't elaborate, and said seriously: "Did he have something upsetting recently? It made him feel unhappy?"
"what?"
"Isn't it possible?" Uncle froze for a moment, and said seriously: "Xiao Xu always treats work strictly, it is impossible to say that nothing is not in the state, even if there is... With Xiao Xu's self-control ability, Get the status back."
　　"..."
　　 "Old Yang!"
"Don't be so full of words." Director Guo said helplessly: "You don't know Xiao Xu's recent performance. You are late every day and leave early. Sometimes you can't even find anyone. To be honest...it's not like that. The work attitude that Xiao Xu should have."
　　 this time,
　　 Uncle's turn was dumbfounded, Xu Mang was not like this in his impression.
　　 What is going on now?
　　 "Ahem!"
　　 "I called an elder and asked what was going on."
　　The words fall,
Uncle 　　 directly hung up the phone, and then called the principal of Fu University.
　　 According to seniority, this is his second uncle.
"Hey?"
"Second Uncle... What is Xiao Xu's working status at school?" The uncle asked curiously: "He is not working in Beijing recently, and then I received a call from an old friend telling me... Xiao Xu has a problem with his work attitude. He arrives late every day and leaves early. Sometimes he can’t even find anyone.
　　"..."
"That's right!" Grandpa Second sighed, with a little helpless tone in his tone: "You must not be deceived by his innocent look, or have an illusion because of media reports, actually.. . The messy ability of this bastard... alas..."
　　 Uncle is completely lost, this... things seem to be getting weird.
　　 "Second Uncle?"
　　 "I don't understand a little bit, this...the little Xu in your mouth seems...a little bit unreal," the uncle said.
"You just came into contact with him. After a long time, you will naturally know." Grandpa Second said, "The friend who told you doesn't need to stare at Xu Mang. The tighter you control, this kid is making trouble. The stronger the ability, in the end, be careful that the house is demolished for you."
　　 "In short—stock!" Grandpa Second said solemnly.
　　 Stocking?
This...
　　 Can this work?
　　 Uncle hesitated for a while, and hurriedly asked: "Second Uncle...Are you sure? Are you sure you want to put Xiao Xu in stocking? The project he participated in is not easy!"
"Do not worry!"
"It's not wrong to listen to me." Grandpa Second said indifferently: "Don't bother him, you can't control...I have been with him for nearly a year and a half, and I can tell you this very clearly~www. EbookFREE.me~Don't worry about him."
Uncle 　　 opened his mouth, hesitated for a long time, and said, "Good!"
"correct!"
　　 "Let your friend ask Xu Mang when the project will end. As long as Xu Mang says a certain amount of time, it will basically be the same." Grandpa second reminded.
"I understand!"
hang up,
Uncle 　　 directly called Director Guo.
"Hey?"
"Lao Guo... tell you one thing. Xiao Xu has such a working attitude. You don't need to pay attention to him, let him fend for himself." When the uncle said this, the whole person fell into embarrassment. In trouble.
"you..."
　　 "I said Lao Yang... There is no such kind of guardian for the calf!" Director Guo was full of black lines: "This is not a joke... You know how important this project is!"
"Ugh..."
　　 "Anyway, you just listen to me once!" The uncle asked again: "That's right... Did Xiao Xu tell you when to finish it?"
　　 Director Guo hurriedly said: "Say it! Two days later, isn't this bullshit?"
　　 "Ahem!"
　　 "Perhaps he is serious." The uncle smiled bitterly: "Or...Shall we talk in two days?"
　　 Director Guo:? ? ?
　　......
　　:. :