Siheyuan: the Understanding Is Incredible, and the Powerful Weapon of the Great Country Is in Hand.

"This is impossible! Even Soviet experts sentenced the scrapped machine tool to death, and he repaired it after just touching it? And the accuracy was improved by three levels?!" In the Red Star Steel Rolling Plant, the boss of the Ministry of Industry was dumbfounded as he watched the frail and delicate young man in front of him rub out aerospace-grade parts that were fifty years ahead of the world with his bare hands. Li Ping'an wiped his hands calmly: "Don't do anything basic. This is just an extension of "Principles of Mechanics"." … Li Ping'an traveled through the winter of 1952 and started on hell difficulty. The uncle who depends on each other is dying, and the courtyard is full of beasts sharpening their knives, depriving the family, dividing the property, and grabbing pensions. Jia Zhang's vicious curses resound throughout the courtyard. In a desperate situation, the heaven-defying enlightenment awakens and the [Original Space] is opened with you!