英语词汇well packing怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

　

单词	well packing
释义	Definition of well packing in English: well packing noun Watertight packing used in an oil or gas well, typically to seal a well after the withdrawal of a drill or to seal the gap between a drill pipe and the side of the boring. Origin Mid 19th century; earliest use found in U.S. Patents. Definition of well packing in US English: well packing noun Watertight packing used in an oil or gas well, typically to seal a well after the withdrawal of a drill or to seal the gap between a drill pipe and the side of the boring. Origin Mid 19th century; earliest use found in U.S. Patents.
随便看	piece of confectionery piece of cordage piece of deception piece of documentation piece of doggerel piece of eight piece of equipment piece of fiction piece of fun piece of futility piece of good fortune piece of gossip piece of ground piece of hardware piece of hearsay piece of homework piece of indecorum piece of information piece of land piece of luck piece of luggage piece of matter piece of merchandise piece of mischief piece of music

　

英汉双解词典包含464360条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。

　

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更新时间：2024/11/11 7:46:04