With a plump face, a pair of eyes as dazzling as the sun, but as calm as water, and a calm demeanor, Lin Wan was filled with shock. She had never imagined that a comrade, a professor who was the top leader of the Northern Department, would appear.
here.
The reason why she recognized Comrade Professor was because she had previously escorted the complete red secret deciphering data to Tianjin and was received and commended by three core figures from the Northern Ministry.
Comrade Professor, why are you here?
Could it be that...
For a moment, Lin Wan's thoughts were racing.
Sensing Lin Wan's strangeness, Yu Hua looked in the direction Lin Wan was looking. When he saw the middle-aged man walking slowly towards him, he was a little confused. Is this Lin Wan's father?
Comparing the appearance carefully, they don't seem to look alike.
"Miss, my family has arranged for me to pick you up to protect your safety. There has been a lot of chaos in Beiping recently." Comrade Professor came to the two of them with a gentle smile from the bottom of his heart. He greeted Lin Wan in a standard butler manner, and slowly
said.
Seeing the comrade professor who presented himself as a butler, Lin Wan felt confused. She immediately understood the other person's intention of hiding his true identity. He followed the words and turned to look at Yu Hua: "Um... Okay, Yu Hua, this is my home.
The butler’s name is Liu Wei, you can just call him Butler Liu.”
There is indeed a housekeeper in her family, and the housekeeper's name is indeed Liu Wei. However, the housekeeper Liu Wei and this 'Liu Wei' are not the same person at all.
housekeeper?
Excuse me.
Hearing this word that had never come before and full of upper class atmosphere, Yu Hua immediately understood the identity of the other party. He silently apologized for his shallow worldly experience, smiled, and said with his hands: "Hello, Butler Liu."
"Hello, Student Yu, I have heard Miss Yu often talk about your deeds and talents. I have also had the honor to read your mathematics papers published in the Journal of Tsinghua University. However, I am not very knowledgeable and have not been able to understand the essence of the articles written by Student Yu.
This is our first meeting, so please forgive me if I am not well received." Liu Wei looked at Yu Hua with a smile on his face and bowed his hands in return.
The polite words full of praise were devoid of rawness and separation, and revealed a sense of reality.
After hearing the words of Butler Liu, Yu Hua had only one feeling in his heart - comfort.
See how people talk?
His words are full of scholarly family background, but there is no sense of superiority. While greeting politely, he not only expresses his identity, but also expresses his care for the guests.
Of course, I can't be considered a guest.
"Steward Liu is overrated." Yu Hua said with a smile.
Liu smiled and looked at Lin Wan and Yu Hua with gentle eyes like water: "Miss, classmate Yu, this is not the place to talk. Please move to the car."
"I have a few more questions about the seven-tower device. How about a cup of tea?"
Lin Wan heard this, turned to look at Yu Hua, and asked, there are many people at the school gate, so it is not suitable for chatting and discussing things. Moreover, judging from the posture of 'Steward Liu', it seems that he is rushing towards the seven-tower device.
You have to do a full set of acting, now is the time to test your acting skills.
"Being respectful is worse than obeying orders." How dare he refuse the angel investor's request, Yu Hua said with a smile.
"Miss, classmate Yu, please come with me." Seeing Yu Hua agree, Liu Wei said, turned around and led the two of them away from the bustling school gate.
Two young men on alert guarded them on the left and right. The three of them squeezed through the crowd and walked out to meet two Buick cars parked next to the highway.
Two Buick cars were parked neatly, and a young man with sharp eyes stood next to them. Looking at this scene, Yu Hua once again gained a new understanding of the wealth of Lin Wan's family.
Buying two cars during the Republic of China was not an ordinary thing. Ordinary wealthy families could not afford the expense of two cars.
His family was rich, he was good-looking, and he was considered a genius. His true identity was that he was a member of the revolutionary organization and participated in the December 9th Movement.
Also a second-generation rich woman, Lin Wan, a girl from the Republic of China, was not the slightest bit better than the second-generation rich women of later generations.
"Please!" Liu Wei came to the second car, opened the rear door, bowed slightly, and gestured to Lin Wan and Yu Hua to get in the car.
The two nodded and got into the car. Liu Wei sat in the passenger seat. The two accompanying young people and the young man standing guard took the first Buick car. Accompanied by the roar of the car engine, the two Buick cars quickly drove away from Chongde Middle School.
Drive along the road to the south area of the city.
"Old Liu...Old Liu, has the money I asked for for my family arrived?" In the car, Lin Wan looked at Liu Wei and called out "Old Liu" rather unaccustomedly, expressing concern about the loan payment.
Liu Wei, who was sitting in the co-pilot, replied: "It's already here. Put it in the yard where I live. According to your request, miss, it's all in cash. Recently, the French currency has depreciated and has become less and less valuable. I have lost a lot in exchanging these oceans."
."
"That's good, Yu Hua, the money is already in place, how will you get it tomorrow?"
When Lin Wan heard this, she breathed a sigh of relief. She knew that fifteen thousand oceans was a large amount of money for the organization. She looked at Yu Hua with clear eyes like a clear spring.
How can I get 15,000 yuan in cash?
I take it with my hand.
Yu Hua shook his head slightly, opened his schoolbag, took out a pre-written piece of paper, and handed it to Lin Wan: "I'll leave the money with you for the time being. This is a list of the required equipment and materials. Take a look and see if there is anything relevant and a way to buy it."
To these equipment? Among them, centrifugal pumps, submerged arc welding equipment and flux have the highest priority.”
The entire list lists sixteen types of equipment required for the development of a seven-tower device. Among them, the most difficult to purchase are industrial-grade centrifugal pumps, submerged arc welding machines and fluxes.
The centrifugal pump is a key auxiliary equipment in the seven-tower device. It is used to continuously transport water into the reaction tower. The flow rate is about 30 cubic meters per hour. In the Republic of China, only small-flow centrifugal pumps could be produced, and their quality was unreliable and their lifespan was short.
, need to import equipment.
Submerged arc welding machines and fluxes are mainly used to weld the joints of pressure vessels to ensure that the reaction tower meets the design standards.
The core reason why this seven-tower device can produce more than foreign tower devices lies in the internal pressure of the reaction tower. If you want to realize the dream of producing 22 tons per day, you must use a submerged arc welding machine.
The electric welding machine is not suitable for welding pressure vessels.
Lin Wan has already drawn a super pie with an annual output of one million tons of sulfuric acid. What he has to do now is to start from the most basic place.
In the early stage, equipment was purchased and a prototype seven-tower device was manufactured. In the later stage, the equipment was developed and manufactured by oneself to achieve mass production of the seven-tower device.
Of course, if the technology-for-equipment deal with Rabe can be concluded, then the problems of manufacturing centrifugal pumps and submerged arc welding machines will be easily solved.
Lin Wan took the light yellow paper, read the list of equipment and material types, and the required quantities, frowned slightly, and said: "I don't know much about these equipment, I need to show it to Butler Liu, Liu
The butler is one of the people I trust most, I can tell him about the seven-tower device, don’t worry.”
"no problem."
Yu Hua heard this and nodded.
"Old Liu, take a look." Lin Wan shouted to Liu Wei and handed the paper over.
Liu Wei took the equipment and materials list and browsed it roughly. He knew two of the sixteen equipment materials, and the others were very unfamiliar. He shook his head gently: "Miss, I don't understand these very well. I need to arrange for the following people to investigate.
, it will probably take a certain amount of time.”
"Yu Hua, I'm sorry..." In response to this answer, Lin Wan had a look of helplessness on her face.
"It's okay, this little time doesn't matter." Yu Hua shook his head. It was normal to not understand technology. If Butler Liu knew technology very well, then he would find it strange.
"Student Yu, are the above devices necessary? In other words, even if one of them is missing, it won't work?" At this time, Liu Wei suddenly asked.
"Yes, if any one of them is missing, the seven-tower device on the drawing cannot appear, such as the submerged arc welding machine and flux. Without this equipment, we cannot process the reaction tower that meets the design requirements. Weld it with an electric welding machine.
If the reaction tower pressure does not meet the standard, the actual output will be significantly reduced." Yu Hua nodded and explained.
After saying this, Lin Wan and Liu Wei understood the importance of these devices.
Liu Wei already had a general idea in his mind. He looked serious and nodded: "I understand. I will ask the people below to handle it as soon as possible and give a quick reply."
"OK."
Yu Hua smiled and nodded.
The scenery outside the window passed quickly. As we continued to move towards the Nancheng District, the city of Beiping gradually became dilapidated. Most of the pedestrians were in ragged clothes and had dirty faces. There were very few people wearing long robes and mandarin jackets. It was completely different from the dignity and nobility of the Xicheng District.
Yu Hua quietly stared out the window and sighed in his heart, this is Peiping that belongs to the lower class, where the poor gather.
After a while, two Buick cars left the main road and drove into a relatively narrow road. The surrounding streets were much cleaner. Then they stopped steadily in front of a teahouse with simple decoration and everyone got out of the car.
"This is my family's property." Lin Wan smiled at Yu Hua.
rich……
Yu Hua sighed in his heart.
Everyone walked into the teahouse. There were not many people inside. They entered the private room and asked for a pot of Biluochun.