短語詞組短語portable drill rig 輕便鑽機portable drilling rig 便攜式鑽機;輕便鑽機portable workover rig 移動式脩井機portable drill portable drilling rig 便攜式鑽機portable trailer mounted drill rig 輕便拖車式鑽機portable trailer -mounted drill rig 裝在拖車上的輕便鑽機 返回 portable rig