短語詞組短語hydraulic lift mining system 水力提升采礦系統(tǒng)hydraulic coal mining technology 水力采煤工藝hydraulic c mining 水采hydraulic c mining machinery 水力采礦機械hydraulic hitch mining system 水力開采法hydraulic coal mining [礦業(yè)]水力采煤;煤礦水采hydraulic hitch mining operation 水采作業(yè)hydraulic hitch mining 水力采礦hydraulic borehole mining 鉆孔水力開采 返回 hydraulic mining