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 Ten days after the satellite project was launched, at 23:00 in the evening, Zhou Ruicai walked out of the school exhausted.
 He no longer looked like the senior professor he used to be. He sat casually at a roadside stall, ordered fried rice noodles, and started eating.
 In the eyes of people on the roadside, this little old man is no different from a migrant worker.
 Zhou Rui buried his head and took a few mouthfuls, when suddenly he was patted on the back.
 "Hey, Professor Zhou wants to marry his daughter-in-law to earn a bride price, and you just deal with it like this tonight?"
 "Tang Weitian!"
 Zhou Rui looked at the old man in front of him who was wearing trousers and a shirt, with his white hair combed meticulously, and he was sitting in front of the greasy table without caring.
 Tang Weitian, who was just elected as an academician of the Academy of Sciences last year, is a professor at Southwest Polytechnic University, which is the 985 school that cooperates with Nanjing Institute of Technology to develop satellites.
 The two are high school classmates and have worked together for more than a year, and their friendship is very deep.
 At this time, he was very happy to see his old friend Zhou Rui and wanted to take him to a restaurant. However, Tang Weitian just ordered a bowl of rice noodles and ate it with relish at the roadside stall.
 After first chatting about old classmates and asking about the current situation of his family, Tang Wei finally asked about the real purpose.
 "Old Zhou, I recently came to Sichuan to attend a meeting. I heard that you guys are really serious. Are you going to develop satellites and rockets?"
 Although he had known for a long time that his old friends would not look for him for no reason, Zhou Rui was still very happy, and since it was not a secret, he told the whole story.
 Tang Weitian's eyes lit up when he heard this. Especially when he heard that the rocket was actually built by a private enterprise, he couldn't sit still. He deliberately pretended not to believe it:
 "The country has just opened up the aerospace market, and he built it at a young age? He also said he would launch a rocket in one month. Isn't he trying to defraud you of your funds?"
 This trick really worked, and it stoked Zhou Rui's hopes for most of his life. He immediately became anxious:
 "Liar? The chief engineer is the backbone of the Aramco Space Agency! In just a short time, the first-stage rocket engine and the 120-ton kerosene engine prototype have been built.
 I happen to have a day off tomorrow morning, will you go? "
 "Go, why don't you go!"
 Watching Tang Weitian beat the snake and follow Zhou Rui, he felt that he had been fooled, but he couldn't take back what he said, so he had to admit it.
 The next day, he and Tang Weitian took a car to the test bench on the hill across from the tractor factory.
 Also produced by System, this test bench has a dual station and can test two engines at the same time. It can withstand a maximum thrust of 250 tons, which is quite large.
 When they arrived, the engine was ready and the electrical system was self-checking. Guo Shen was introducing it to Lin Ju.
 "This prototype machine was made by several masters while I was training workers. The internal name is K120. K is the English initials of kerosene, and 120 is the thrust.
 The K120 is a simple and efficient engine, weighing 1.2 tons, with a single combustion chamber and a maximum diameter of 1.3 meters. Even semi-manual manufacturing is not complicated. It only takes 168 hours to produce the next official version, which is very efficient. "
 Lin Ju was very satisfied with this data, and suddenly thought of something and asked:
 "If we want to install 7... or 9 engines of this kind, with one in the middle and eight engines on the sides, what is the diameter of the rocket body?"
 Guo Shen thought about the following, drew a few circles on the table with a ballpoint pen, thought about the layout, and quickly gave the answer:
 "Six meters, maybe. Do you want to build a big rocket? In this case, the thrust will be 1,000 tons, and the near-earth transport capacity will be almost 30 tons. But why put one in the middle? If you put three in the middle, the structure will have a larger gap and be safer. .”
 Lin Ju smiled. He thought of the Falcon 9 rocket and Falcon Heavy that would be successful in a few years. In any case, their ideas have been proven to be right, and there is no shame in adhering to the principle of appropriation.
 "If there is one in the middle, you only need to start the engine in the middle during vertical recovery. It saves fuel and is convenient."
 "Do you believe Ma Yilong's recycling theory?"
 Guo Shen was a little surprised. At this time, Lao Ma's empty fork continued to set off fireworks. No matter the layman or insiders, they didn't believe that he could succeed. Even Lao Ma himself was a little unconfident.
 "I can't tell that Boss Lin's aerospace ideas are also very advanced."
 A strange voice sounded. Lin Ju wanted to see who was eavesdropping, and saw Tang Weitian walking out with a smile.
 "Lin Ju, this is my old classmate and an academician of the Academy of Sciences, Tang Weitian. I heard that you are working on rockets and I had to come and have a look.
 I brought him here without permission, please don't blame me. "
 Zhou Rui was still a little embarrassed, but Lin Ju immediately became excited when he heard that he was an academician.
 "No, no, Teacher Zhou is serious. It's my honor for Academician Tang to come over."
 "It doesn't matter, I'm just taking a look. I just heard you say you need to connect 9 engines in parallel in one stage. It's too risky to add so many engines. 5 to 7 engines are suitable. One with a transport capacity of 15 to 20 tons is already a big rocket. .
 Don't call me academician, just call me teacher. "
 Tang Weitian's elder-like attitude made Lin Ju feel very comfortable, but as a time traveler, he was still a little unconvinced.
 "Since you asked me to call you Teacher Tang, just call me by my first name. But do you know there is another reason why I asked Channel 9?"
 "Oh? It seems that classmate Lin Ju has other ideas? Let's talk about it."
 Lin Ju became proud and saw that he held a round shape with his left and right hands and gently moved closer to the middle.
 “Using a design of nine engines in the core stage, and then using the CBC configuration to use the core stage as a boost, the total thrust will exceed 3,000 tons, and the low-Earth orbit carrying capacity will be close to 100 tons.
 And this carrying capacity..."
 "Moon landing!"
 Guo Shen, Zhou Rui, and Tang Weitian said these two words at the same time.
 The Saturn V rocket used by Aramco to land on the moon in the last century has a first stage of 3,400 tons of thrust and a low-Earth orbit carrying capacity of more than 110 tons.
 With current technology, the moon landing spacecraft can definitely lose a lot of weight. If it can send a 100-ton spacecraft into space, it will definitely fly to the moon with three astronauts.
 Tang Weitian was very excited. Lin Ju's words made him see the new direction of aerospace.
 The CBC configuration can greatly simplify rocket design because the booster is exactly the same as the main rocket first stage and is easier to produce.
 But he immediately calmed down again:
 “The idea is really, really clever, but it’s too difficult to control multiple engines, there are too many engines.
 There are a total of 27 engines in the three core stages. If one of them fails, it will be troublesome. The fault tolerance rate is too low. Not only the control system, but also the requirements for the engine are also very high. "
 "But we have to do it because it is difficult. Only in this way can the cost of the rocket be reduced. If recycling technology is used again, even if it can only be recycled ten times, the price of aerospace cargo will drop to an extremely terrifying level.
 The future of aerospace must be cheap, and as long as we follow this path, we will not go wrong. Nowadays, electronic technology is so advanced that one day it will be able to achieve this capability. "
 Lin Ju already knows that the Falcon 9 with the same first stage and nine engines will be successfully recovered at the end of next year. It will be a smooth journey from now on, so the road is not only open, but also not far away.
 However, in the eyes of the three people, Lin Ju is the confidence of young people, but his statement is indeed very reasonable, and it is more emotional.
 The test bench was now ready, and as the announcer cleared the stage, the people in the console began to inject fuel into the engine.
 "10, 9, 8...3, 2, 1, ignite."
 Looking out the window, white smoke appeared repeatedly from the engine nozzle, which was liquid oxygen escaping into the air.
 Fuel is then pumped into the combustion chamber and the nozzle begins to release flames.
 The engine's throttle valve slowly opens, the thrust slowly increases, and the tail flame emitted becomes longer and longer until the throttle valve reaches its maximum value.
 The airflow with a thrust of 120 tons hits the ground, and the roar and vibration can be felt for several kilometers.
 Therefore, in order not to affect the machining accuracy of the machine tool, it was moved so far away.
 "The current thrust is 122.3 tons, and the throttle valve is open 100%!"
 The broadcast sounded, and there was applause in the observation room. The employees involved in engine manufacturing were happy, but at the same time felt a little confused.
 "Third brother, didn't you say that we built a rainfall device? Why does it breathe fire? It looks like a rocket engine on TV."
 "I...I don't know either!"
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 Due to the death of his father, Lin Ju was forced to take over his family's tractor factory. 
 Facing the tractor factory in trouble, Lin Ju said: 
 It doesn’t matter, the system will take action! 
 Since I can build tractors, it must be very reasonable for me to switch to rocket production, right? 
 So in the ordinary tractor factory, a tall rocket was erected. 
 Then the whole world discovered that this tractor factory was getting more and more outrageous: 
 New energy vehicles, tanks, jet engines, passenger planes, fighter jets, aircraft carriers... 
 Everyone pointed at Lin Ju's nose and asked, "Don't you make tractors?" 
 Lin Ju innocently pointed at the Mars mobile base: "Crawler type, it can go down to the ground. Just tell me if it is a tractor!"
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 "I'll give you a million dollars, but you have to stay in the last game you played for a year. Are you willing?" 
 Li You (disdainful): Yes, yes, and then what? Can you let me go? 
 Then he traveled through time. 
 Arrived in Raccoon City. 
 Li You: Don't underestimate me, I'm a full-achievement player! ! Look at me clearing the game with one life! ! 
 This is a story about a game nerd traveling through different game worlds to overcome obstacles. 
 [Note: The original work's important CP is not broken. ] 
 [Current world line: Resident Evil II and III → Dying Light → Resident Evil IV → Sekiro → Dead Cells → This War of Mine → Double Edge → Cyberpunk 2077 → Resident Evil 1 → Dark Souls III (pure process) → Devil May Cry IV → Elden Ring]
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 Despicable, insane gong x paternal and indifferent, divorced shou. The story between a youth with a unique psychological disorder and an apathetic doctor.
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 There isn’t too much hatred or pretentiousness. This is the story of a “lucky guy” named Su Yu who worked hard and achieved success: 
 As a sophomore, Su Yu from Western Polytechnic University was able to travel back and forth to the wasteland world. 
 When he traveled to the wasteland world, time in the real world was suspended, which gave him a lot of learning time in the wasteland world. 
 Although the wasteland world is riddled with holes, its knowledge is recorded in incomplete books. 
 So, as if Su Yu had discovered a bunch of "peerless secrets", he began to study hard in the wasteland world, and then returned to the real world to become a top student. 
 Of course, he also farmed in the wasteland world.
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 Wake up, go back to that era, and face the past again, with an ending you can't guess...
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 Life is unpredictable. Her husband loved her stepsister, deposed her as Empress and even forced her son to death. In that Cold Palace, she was forced to drink poisonous wine. So in the next lifetime, she made a promise to never do good deeds and help others, to never step into the palace and to never become the Empress!
 At the Prime Minister’s estate, the mistress’ daughter is reborn into a she-devil.
 An evil stepmother? I will make sure you go to Hell!
 A two-faced, hypocritical older stepsister? I will rip apart that beautiful façade!
 A scheming younger stepsister? I will throw you into the grave!
 You guys didn’t let me live peacefully so you should also expect the same!
 Initially she wanted to stay away from disaster as far as possible; however, a man’s heart is like a needle in the sea—impossible to search for, impossible to understand.
 The man who once swore to abandon her became someone who can’t live without her.
 The enemy from the past lifetime suddenly confesses his feelings for her.
 Even worse, she is bothered by a handsome man with a thick-skin who doesn’t know how to give up!
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 Space, System, Treasure, Spirit Tools … other protagonists all have golden fingers, Shi Qing: this young grandpa [Xiao Ye] is a golden finger.
 It’s just that …he is now a golden finger and even more importantly bound to a host?
 And so this host, has a backstory resulting a bloody darkened heart and soul, truly a psychopath!
 A psychopath I can endure, but I also have to work together with the psychopath through different worlds, can I endure?
 Ancient times, modern times, apocalypse, futuristic….
 Traveling throughout the worlds, Shi Qing thinks the host isn’t as bad as he imagined? Strange.
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 If you are good enough, why don’t you fly to the heavens, and rise side by side with the sun?
 This is about a girl who played using a male character, carefully building up her strength, guarding her wallet to one day be able to sponsor her male idol.
 This is the story of a group of mentally insane people.
 ≡ ※ ≡ ※ ≡ ※ ≡ ※ ≡ ※ ≡ ※ ≡ ※ ≡
 Tang Xiao had two wishes so far, the first wish is to sponsor Mu Cheng. The second wish was to help every enemy of Su Muzhe!
 Female: Wife, I have died! When I die, hold me tight! That way, the ones who have come for revenge will know that we are a pair!
 Male: … …
 Everyone: Why aren’t you going to the heavens?!
 ※ ≡ ※ ≡ ※ ≡ ※ ≡ ※ ≡ ※ ≡ ※
 Everyday, when Tang Xiao sat at home, she would first, number 1: kiss kiss pat pat and stare contentedly at the collection of naked posters of her male idol Mu Cheng that she had pasted all over her home.
 Secondly, she would play online games.
 With her male ID, Tang Xiao would cause havoc and uproar all over the game by confessing to girls constantly everyday, murdering all the men and generally, harassing people in public.
 Every single time, she raised havoc, a female ID named Su Muzhe would punch her and try to knock her to her senses.
 Thus a marriage began between a male ID who had a girl behind it, and a female ID who had a man behind it.
 While at the same time, Tang Xiao tried her very best to roll into the sheets of her male idol, not knowing that she was already associated with him in the 2D world.
 This is the story of how Tang Xiao was shamelessly bribed by her male idol to marry his character with naked posters of himself, and how every time she announced she wanted to sleep with him, she was punched.
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 Taking up his father’s title, protecting Goddesses, an unusual path of cultivation.
 Xiao Family’s dandy Young Master Xiao Chen, degraded to trash of the clan, with his father missing and thrown out of the family.
 His fiancée became his mistress, and Xiao Chen has became his fiancée personal servant, what was most pitiful was that there weren’t any wages and he still had to pay rent!
 However…it doesn’t matter, there is spring for unlucky teenagers…
 For whom did he become an amazing cultivator for?
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 Many years ago, Zhou Hao was still that nutcase that was proud on the surface, but underneath, he starved for love. He treated Jiang Yuqian as family, and was extremely good to him.
 Jiang Yuqian did not love him, instead scorning him for irrationally clinging on to him, and finally sent him to hell with one kick.
 Many years later, Zhou Hao’s disposition had improved a lot. He had learnt to love everyone good around him, the only exception being Jiang Yuqian.
 Jiang Yuqian, however, was as though possessed. He started missing the uniqueness of the little nutcase, and started to cling on to him as though he was a plaster…
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 Her original self was a powerful&nbsp;jiangshi&nbsp;who had cultivated for innumerable years. However, when she attempted to unlawfully enter the world of the immortals, she was discovered by the Jade Emperor and thrown into the mortal&nbsp;world as punishment. Her soul then left her corpse, fusing with the body of the Motian Dynasty’s sixth princess. She didn’t even have a chance to fully comprehend her current circumstances before her maid unexpectedly ignored her mistress, even publicly provoking her!
 “What? That weak and cowardly idiot who has neither her father’s love or mother’s favor actually mistook her older sister as her maid?! All the royal princes in the world loathe her?”
 “Damn you! This old lady will let all of you understand why the flowers are so red!”
 “Hey! Did you hear? That cowardly sixth princess unexpectedly snatched away the man that the eldest princess favored today!”
 “How is that interesting news? That fourth princess who ran always ran amuck in the capital city is now confined to her bed now!”
 The good-for-nothing counterattacks! The previously cowardly and incompetent sixth princess suddenly reveals her exceptional talents! She is full of radiant elegance, and unparalleled disdain!
 She is driven by the desire to shed no more tears! However, if she had known what would happen later, she would have been better off acting stupid! She had calculated thousands, tens of thousands of scenarios, but had never calculated one where one day, her own prey would unexpectedly turn around, and ruthlessly bully her instead! Damn it, she still hasn’t sucked any blood yet!
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 The Human Emperor and his opponents were embroiled in a 33 day long final battle involved the strongest experts. After destroying the Abyssal World and sealing the Abyssal demon king’s godly weapon‘ a mysterious purple card disappeared into the space-time vortex‘ and tunneled through infinite space-time.
 In the vast wilderness‘ where martial arts was still slowly growing in its infancy‘ several peerless masters tried to find their path in the world of martial arts.
 A young adult named Yi Yun from modern Earth had unwittingly stumbled into such a world and began that journey with a purple card of unknown origin.
 It’s a magnificent yet unknown true martial art world. This is the story of a normal young adult turning into a legendary peerless expert.
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 Zombie: “Roar!” 
 Lin Fan: “We are all neighbors, why do you have to be so irascible?” 
 Lin Fan: “I do not have time for you, I have to go to the store to buy some stuff.” 
 Looking at Xiao Qing, who had already turned into a zombie, Lin Fan said, “Xiao Qing, I bought a few bottles of water, I have already scanned the QR code.” 
 “Boss, I want to get my wage for this time’s work.” 
 Sunshine Neighborhood, the neighborhood that Lin Fan lives in, countless survivors flock there to seek protection. 
 In a world where zombies run amock, we have to learn from Lin Fan on how to be a good and outstanding citizen. 
 Abide by the laws, earn money by working, and strive to buy a house and a car with your hard-earned money.
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I ask you to build tractors, but you build rockets?

Chapter 7 Engine Testing

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I ask you to build tractors, but you build rockets?

Chapter 7 Engine Testing

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