working face
短語詞組
- working slope face 工作邊幫面
- working tooth face 工作齒面
- working -face 澆筑倉面
- non -working slope face 非工作邊幫面
- caving -working-face 炮采放頂煤
- working face pressure 工作面礦壓
- chamber mining working face 房式采煤工作面
- division working face 分層工作面 返回 working face