短語詞組短語strip coal mining 露天采煤strip -mining 露天礦strip p mining 露天開采;條狀開采法deep strip pillar mining 深部條帶開采strip mining of coal 露采煤礦strip mining under village 村莊下條帶開采ascending strip mining 條帶上行開采strip mining machine 露采機 返回 strip mining