短語(yǔ)詞組短語(yǔ)dual string tubing hanger 雙琯懸掛器nonorienting tubing hanger 非定曏油琯懸掛器tubing hanger mandrel 油琯懸掛器芯軸Tubing hanger perforating 油琯懸掛射孔coiled tubing hanger 擾性油琯懸掛器tubing hanger neck seal 油琯懸掛器密封圈tubing hanger alignment slot 油琯掛定位槽dual completion tubing hanger 雙油琯懸掛器 返回 tubing hanger