英语词汇“jack line”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	jack line
释义	jack line jack line [′jak ‚līn] (petroleum engineering) A steel cable or rod that connects the arms of the central pumping engine to the two or more wells that are being pumped.
随便看	paraspen parasphenoid paraspinal paraspinal line paraspinal muscle par asset swap parastacidae parastacoidea parastas parastasis para-statal parastatal para-statals parastatals para state parastate parasteatosis parasternal parasternal heave parasternal hernia parasternal line parasternal lymph nodes parasternal mediastinotomy parasternal region parasthesia

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