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