The key factors involved in the changes in the Sihe river system are the invasion of the Yellow river and the opening of the Grand Canal.
泗河水系河道变迁的主要因素是黄河夺泗和南北大运河的开发。
The key factors involved in the changes in the Sihe river system are the invasion of the Yellow river and the opening of the Grand Canal.
泗河水系河道变迁的主要因素是黄河夺泗和南北大运河的开发。
应用推荐