英德
有道
百度
谷歌
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维基
百科
油管挂
mandrel hanger
- 先上提一根油管，再坐好油管挂。
Pull out one joint of tubing first, and then install the tubing hanger. - 这种井口装置由套管法兰、套管大四通、井口阀、油管挂、油管挂体及相关附件组成。
It is composed of casing flange, casing cross joint, wellhead valves, tubing hanger, tubing head cross joint and accessories.
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