What is the cause of the Qing ditch?
访客9个月前
The formation of the Daqing Valley is the result of geography, history, geology and human activities. Its unique geographical background, topography and climatic conditions have an important impact on the formation of the ditch. Historical changes, human activities such as agriculture and industry, as well as geological structure and activities have shaped its shape. The analysis of these factors is helpful to understand the dynamic evolution process of the origin of the Daqing Valley....