Introduction to Dazhai: Dazhai Village is a small mountain village in Xiyang County, Jinzhong City, Shanxi Province. It belongs to the earth-rock mountainous area of the Taihang Mountains. Due to long-term wind erosion and water cutting, the area has formed a slope with seven ditches and eight beams. The mountains and rivers here are poor, with seven ditches and eight beams on one side. The natural environment is harsh, and the people's life is very difficult. After the mountain and water control was carried out, layers of terraces were opened on one side of the seven ditches and eight beams, and the situation of relying on the sky to irrigate the land was changed. Since Chairman Mao called for "learning from Dazhai in agriculture", the older generation of proletarian revolutionaries Zhou Enlai, Li Xiannian, Ye Jianying, Deng Xiaoping, Chen Yi, etc. have successively inspected Dazhai. There are heads of state, political dignitaries and friendly celebrities from abroad, and domestic people from all walks of life. Tens of millions of people from the industry came to visit and learn from Dazhai, including more than 25,000 people from 134 overseas countries and regions.