The completion of the comprehensive science exam means that the joint entrance exam has come to an end. After lunch, there is a two and a half hour break at noon. All students use this time to busy with final review.
In a blink of an eye, two hours passed, and the last English test of the joint entrance examination came.
Yu Hua walked into the examination room with ease and waited for the exam.
The students around me are eager to take the English test and are full of expectations. This is a subject that few of them are good at.
During the Republic of China, English was the subject that attracted the most attention. Your math scores could be poor, your comprehensive subject scores could be poor, and your Chinese language scores could even be poor, but English could not be poor.
There is no way. Most of the school textbooks are original English textbooks from foreign countries. As a student, if you don't know English, it will be difficult to move forward.
There is a huge disparity in the treatment received in society between a student who can speak English and a student who cannot speak English.
You know, this is the Republic of China, where the illiteracy rate is as high as 80%. An era in which people who can read, add, subtract, multiply and divide can be called talents. A few simple words of Wreigood and Yes can be called elites.
If you have fluent and standard English, it means that you are the 'elite of the elite' and you are the real upper class.
Students like Yu Hua who have mastered English, Japanese, and German are extremely rare. As long as Yu Hua opens his mouth, he can immediately enter a government department and get a very well-paid translation job.
After all the candidates entered, two acquaintances, Juan and He Wanrong, walked into the examination room, explained the discipline according to the procedures, and distributed the test papers. Soon, as the bell rang, the English test officially began.
The sound of writing was heard in the classroom at the same time. All the candidates answered the questions nervously. Yu Hua wrote silently. After finishing the English test paper and re-examining it, he rested on the pillow just like in the morning.
The exams are over and the days of relaxation are gone forever, and the days ahead will be extremely busy.
Regarding the work periodic table after the joint entrance examination, Yu Hua has already completed it.
Time passed slowly, and at 4:30 in the afternoon, when the bell symbolizing the end of the English test rang out, the Peking Joint Entrance Examination, which was extremely important to more than a thousand high school students in Beiping City, came to an end.
Exam results will be released to the public five days later.
The joint entrance examination is over, and all the candidates are relaxed. No matter what the process is, now is the time to rest.
According to regulations, everyone can take a day off to relieve the fatigue caused by high-intensity study.
Outside the campus, a team of parents and reporters from various newspapers in Peking gathered. Everyone was looking forward to it, and pairs of eyes full of expectancy were cast inside the school. The wish of Chinese parents to see their children succeed has not changed at all, even if it spans a hundred years.
Among the crowd, stood a middle-aged man wearing glasses, and two young men stood on the left and right sides, with sharp eyes and a hint of vigilance.
The middle-aged man has a smile on his face, bright eyes, and is wearing a light gray robe. He exudes an elegant and easy-going temperament, which is completely different from the excited parents around him.
Not long after, when a flood of reference students appeared, the school gate suddenly became boiling. Parents kept calling the students' names, and reporters from various newspapers in Peking pressed the shutter of their cameras to take pictures of the students leaving the examination room.
At the entrance of the teaching building of Chongde Middle School, two figures walked towards the school gate slowly and quickly.
Lin Wan held the technical feasibility report handwritten by Yu Hua and read it as she walked. Her face was focused and serious, and her eyes read the report content very carefully.
The entire technical feasibility report mainly focuses on the technical principles of the seven-tower device, as well as the differences and development levels of domestic and foreign sulfuric acid production processes.
The United States mainly uses the contact method production process, and the sulfuric acid industry is highly developed. The annual sulfuric acid output announced in 1936 was about 4.5 million tons, the annual sulfuric acid output in Germany reached 2 million tons, and the annual sulfuric acid output in Japan was about 2.2 million tons.
These data are all published by various countries. In fact, the actual output is about 10% higher.
Lin Wan looked at the development level and annual output of sulfuric acid industry in various countries given in this technical feasibility report, and was extremely shocked. It would be okay if you didn't know this data, but if you look at the above data, you can find that domestic and foreign How big is the gap between those industrial powers.
Abroad, reaching the million-ton level!
Looking back at China, since 1911 to the present, the national annual sulfuric acid output has been about 60,000 tons, which has not yet exceeded the 100,000 tons mark. If the Wynn Nanjing Ammonium Sulfate Plant had not officially started production, the annual sulfuric acid output of China would still be 15,000 tons. tons of wandering.
"Theoretical design, design drawings, manufacturing parts, assembling prototypes for production testing, and finalization are the general development process of the entire seven-tower device. Technically speaking, the development of the seven-tower device is not difficult. The main difficulty lies in processing and manufacturing. Parts, I'm going to solve this myself. We're almost at the school gate. How do you like it?" Yu Hua stood beside him and slowly explained the general development process and technical situation of the seven-tower device.
Processing and manufacturing of parts. ——This is the most difficult link in the research and development process of the entire seven-tower device project. The domestic manufacturing level is extremely backward and it is impossible to manufacture a reaction tower that meets the design standards.
Regarding this problem, Yu Hua, who was not doing his job properly, was ready to take matters into his own hands and have enough food and clothing.
Yes, in terms of not doing his job properly, there is no high school student like him in the world.
No one knows better than Yu Hua that he is not doing his job properly.
Lin Wan collected the technical feasibility report and said with a complex expression: "I've finished reading it."
"How do you feel?" Yu Hua asked calmly.
"It's shocking. The intuitive data comparison made me understand how big the gap is between China and Japan. The annual output of sulfuric acid alone is 36 times greater, while the annual output of sulfuric acid in the United States is double that of Japan." Lin Wan Wuweizai Chen, full of emotions.
The gap is really too big.
This gap described purely using numbers makes people feel a sense of despair in their hearts, and they can't help but ask - how can China resist the invasion from Japan?
What Lin Wan didn't know was that according to history, after the defeat of the Battle of Songhu, the National Government lost the coastal industrial zone, and the capacity of the national industrial system would drop by 90%, causing the already weak basic industry to suffer a devastating blow, which would eventually appear after the war. , Japan’s one-year weapons and equipment production far exceeds China’s eight-year total of weapons and equipment production.
"The advantages of the seven-tower device technology are that it is simple in technology, low in equipment cost, easy in production management, and not afraid of enemy bombing. In a wartime environment, sulfuric acid plants based on the seven-tower device can be manufactured in large quantities. As long as this technology is successfully mastered, Coupled with systematic centralized production and ensuring sufficient raw materials, sulfuric acid production of millions of tons can be achieved in a short period of time."
Getting closer and closer to the school gate, Yu Hua carefully elaborated on the advantages and importance of the seven-tower device: "Of course, the core of the seven-tower device lies in processing parts."
Based on the enhanced seven-tower device of the Soviet Union in the 1950s, it is almost the pinnacle of the tower method. It has simple technology and extremely low equipment costs. Through the industrial human sea tactic, large-scale sulfuric acid production can be achieved in a short time.
The annual output of a single piece of equipment is 8,000 tons, the annual output of ten pieces of equipment is 80,000 tons, and the annual output of one hundred pieces of equipment is 800,000 tons. It only takes a mere 130 pieces of equipment to reach an annual output of 1.04 million tons.
Moreover, during the production process of the seven-tower unit, by-products such as synthetic ammonia and nitric acid, which are extremely important in the fertilizer field, will also be produced.
Of course, the above premise requires a considerable level of parts manufacturing and sufficient raw materials.
The raw material sulfur, according to Yu Hua's qualified geographical knowledge records, there are sulfur deposits distributed in various regions across the country except Shanghai.
"So, we must master the processing technology and equipment of parts, right?" Lin Wan heard Yu Hua's description of the million-ton annual output pie, her heart pounded, she suppressed her inner desire, thought carefully, and quickly understood that Yu Hua Highlights given.
It's easy to talk to smart people. Yu Hua nodded and winked at Lin Wan: "Yes, I am planning to form a seven-tower device technology research and development team. I sincerely invite Jin Yu to join. What do you think?"
There is a hint of fun in the words.
Find someone to borrow money, and let others contribute, it is the only one in the world.
"I promise."
When Lin Wan heard this, she was startled and agreed happily: "Is there anyone else in the technology research and development team?"
"Yes, there are two people, classmates from school, you should know them." Yu Hua nodded: "There are four people in total. There is strength in numbers. It is too difficult for me to do technology research and development alone."
Lin Wan was curious: "Who is there?"
"You'll know tomorrow." Yu Hua smiled slightly and did not answer the question.
Seeing Yu Hua's mysterious appearance, Lin Wan had no choice but to come to the crowded school gate, preparing to avoid the crowd. Suddenly, a familiar voice came over: "Miss."
Miss?
Hearing this voice, Lin Wan suddenly froze, a little disbelieving. She turned around and saw a middle-aged man in a light gray robe walking over.
Looking at the middle-aged man's face, Lin Wan's pupils suddenly shrank, her heartbeat quickened and she was a little sluggish.
This person is not her father, but...
Comrade Professor!
