短語詞組短語portable drill rig 輕便鉆機(jī)portable drilling rig 便攜式鉆機(jī);輕便鉆機(jī)portable workover rig 移動(dòng)式修井機(jī)portable drill portable drilling rig 便攜式鉆機(jī)portable trailer mounted drill rig 輕便拖車式鉆機(jī)portable trailer -mounted drill rig 裝在拖車上的輕便鉆機(jī) 返回 portable rig