"Add three return air pipes... Remove the interval... Ross No. 3 aluminum alloy..." David stared at the hybrid engine and murmured to himself. Suddenly he stood up, walked to the machine on the side, adjusted the machine, opened the steam valve, took out the Ross No. 3 aluminum alloy plate, and began to make a new cover impatiently.

Rumble!

The machine started to operate, and the aluminum alloy plate was gradually crushed and deformed in the machine.

After turning off the steam valve and taking out the somewhat heated aluminum alloy plate, David started cutting again...

Ten minutes later, three new air return pipes were installed in the hybrid engine, and the block was cut off. Only the cover was left before it was installed. After three minutes, David put down the pen, tried to check the internal pressure, held the new cover on the engine, and slowly screwed the screws.

Several students had already stopped what they were doing and looked at David, but their eyes were also scanning Xia Zuo from time to time, because what David was doing now was exactly what Xia Zuo said before.

The power supply was connected to the left side of the engine, and a small steam pipe was screwed on the right side. David stood up and turned on the power supply first. The convex shaft of the hybrid engine began to rotate, and the speed quickly increased to medium.

David slowly placed his hand on the valve in the steam pipe, looking a little nervous, and his hand slowly pressed the valve wrench down.

Puff...scream! The exhaust hole began to jet outwards, and it stopped after only a few seconds. The shaft began to accelerate and rotate. The pointer in the speed instrument panel above began to move slowly, moving from the green area representing medium speed to the yellow area of ​​high speed, and gradually moving closer to the red area representing super high speed.

David still put his hands on the steam valve and stared at the dial tightly. He was afraid of something wrong. Turning off the steam in time can also prevent excessive damage to the engine.

What David was worried about did not happen. Although the pointer moved slowly, it was very stable. As his gaze, the pointer slowly entered the red area, but did not stop, but continued to move closer to the purple area representing the dangerous speed.

"Success?" Allen, a fourth-grade student who usually talks a lot, exclaimed and looked up at Xia Zuo.

Squeak! David suddenly turned off the steam valve. It was enough, and it was enough to reach the ultra-high speed.

Scream! The engine erupted the last steam, the shaft slowly slowed down, and finally stopped completely.

"It's successful." David murmured, raised his hand and rubbed his stubble-covered chin hard. He looked extremely excited. He turned to look at Xia Zuo and asked excitedly: "Student Xia Zuo, how did you think of it?"

"I...just, I just think this should be the case, so I said, there was no special thought..." Xia Zuo said intermittently. He couldn't tell David that he was going back and told Lei that he told him.

The secret of artificial humans cannot be revealed. Now even Fanni doesn't know that Lei is an artificial human. Fanni knows that Lei is a strong man, but she has not been overly concerned about inquiring, because Xia Zuo is the son of King Charlie, and it is not surprising that a guardian strong man appears beside her.

David was not suspicious about Xia Zuo's explanation, because the changes did not involve too profound mechanical knowledge. The main problem of hybrid engines was the lack of return space and small circulation channels. David had been studying how to reduce the electric structure in the engine so that the steam power part would have a larger space. In fact, he was thinking in the wrong direction.

My thinking has fallen into a dead end, so I have never found any research results.

"Sir Xia Zuo, thank you, thank you!" David walked to Xia Zuo and gave Xia Zuo an excited hug.

"Ahhaha... Teacher, I just made a small suggestion, no need to do this." Xia Zuo smiled dryly and felt a little uncomfortable.

"You don't understand..." David let go of Xia Zuo, looked at the hybrid engine and shook his head, sighing: "The small hybrid engine has not been developed in the world. This is the world's first small hybrid engine that has successfully reached super high speed. I want to use it as a technology gift to send it to the Tsarist Corgi Laboratory, so that Hoves and the others can go to Steam Alliance for further studies."

"Sir Xia Zuo, you have helped me a lot!" David looked at Xia Zuo and pinched Xia Zuo's shoulder hard.

"Hehe, luck, luck!" Xia Zuo scratched his head and showed a look of embarrassment. He was really embarrassed, because this problem was not solved by him at all, but by Lei!

Four months later, the city of England entered winter, and after a few snowfalls, the whole city became covered in silver.

On this day, four and a half months after enrolling in the Steam Department, Xia Zuo successfully passed the exam and was promoted to a fifth-grade student of the Department of Mechanics of the Royal British College of England. He obtained the certificate of a fourth-grade mechanic. According to the college regulations, as long as Xia Zuo goes further and is called a fifth-grade mechanic, he can apply for graduation from the college. The college will issue a letter of introduction and recommend him to the First Shipyard in England.

David has been numb about Xia Zuo's rapid progress. In four and a half months, including the time he had read before, it was only half a year. Within half a year, David has only seen Xia Zuo's talent in his life.

He had decided to wait until his two nephews were eighteen and sixteen, and to send the three of them to the Steam Alliance together and apply for a talent guard from the college to ensure the safety of the three in the Steam Alliance.

After leaving the underground machinery museum, Xia Zuo couldn't wait to go to the college library, and went to the core area on the fifth floor to search. Thirty minutes later, Xia Zuo returned to the wooden house.

"Lei, I got it." As soon as I entered the house, Xia Zuo happily shook the two books in his hand and walked quickly to the side of the **.

"Theoretical Practice of Core Dynamics of Artificial Man" and "Decomposition of Artificial Man", these two books are the two books with the highest knowledge content in the Royal Academy Library. Although reading the two books cannot create artificial humans, they are enough to understand the principles of artificial human activities.

Energy cores, energy converters, liquid metal configuration and other technologies can be simply understood in the book. Of course, the most core "igniting the fire of souls" technology of artificial humans is not available at all.

This technology is completely mastered by the Steam Alliance, so only the Steam Alliance can create artificial humans.

On this day, Xia Zuo did not go to class again, and read the two extremely heavy core books with Lei.

Ye, Lei finished reading two books, lay down and began to analyze the technology he learned in consciousness, which is the technology of energy converter. He needed to completely build a new special energy converter in consciousness, which combines his own knowledge with the knowledge in the book, and then create it after arranging the structure diagrams.

Xia Zuo slept later because he had not even finished reading a book. It was not until ten o'clock in the evening that Xia Zuo, who had finished reading "Artificial Human Configuration Decomposition", closed the book and went out to sleep.

The night gradually became silent.

On a winter night, the sky is cloudless and the moon is incomplete, but because the earth is white and reflects, the outside of the wooden house is not dark.

Squeak!

With the sound of footsteps on the snow, a figure appeared out of thin air in the forest outside the wooden house, disappearing again like a dream. The next moment, it appeared outside the back window of the wooden house.

The fair palms with scarlet nails slowly pushed open Xia Zuo's back window, silently.

The figure wearing a red cloak jumped onto the **, and turned his head to look at Xia Zuo who was sleeping on the **.

"Little guy, I finally found you." The vampire Baron Eve, who had been having great joy with Xia Zuo and was later beaten away by the wolf girl Adele, licked his scarlet lips, unable to hide his excitement, and smiled and showed his sharp fangs.

"Huh!" A black gas was gently spit out by Eve, and it swirled in the room, covering Xia Zuo's face, and slowly penetrated.

Xia Zuo's breathing rhythm immediately changed, becoming slower and calmer.

Eve jumped into the room with confidence, landed silently like a cat, and floated to the edge of the ** like a ghost, hugged Xia Zuo and turned into a black shadow. In an instant, she appeared outside the forest behind the wooden house.

This seems to be a special ability that makes Eve look like a ghost.

Holding Xia Zuo, Eve gradually moved deep into the forest. There were too many strong people in the Royal Academy, and Eve had to be careful and even dared not make any sound.
Chapter completed!