上山采区由倾斜长壁式采煤改为走向长壁前进式采煤的应用

上山采区由倾斜长壁式采煤改为走向长壁前进式采煤的应用的英文翻译

基本释义

• Application of changing niclined longwall mining into marching long wall advanced minig in up hill mining area