英语词汇“bent sub”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	bent sub
释义	bent sub bent sub [′bent ‚səb] (petroleum engineering) A short cylinder installed in the drill stem between the lowest drill collar and the downhole turbodrill to deflect the turbodrill from vertical in order to drill a directional hole.
随便看	direct lighting direct lightning effects direct light reflex direct limit direct line direct line access direct linear transformation direct line delivery direct-line drive direct line feed direct line financial services directline for business direct line group direct line of authority direct line of sight direct line recording direct line telephone system direct link direct link ads direct link communications direct link for the disabled, inc. directlink joint venture direct link node direct link protocol direct liquid injection

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