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单词
boll-weevil hanger
释义
boll-weevil hanger
boll-weevil hanger
[
′bōl ‚wē·vəl ‚haŋ·ər
]
(petroleum engineering)
A screw-on connector used to connect and seal the lower end of a length of oil-well casing to the next smaller casing string.
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更新时间:2025/3/11 17:25:41