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	pncl pncla pncll pnclp pncm pncmi pncml pnc mla pncmug pnco pncoc pn code pncompc pncp pncq pnc/r pncr pncs pncsc pnct pncta pncu pncv pncw pncwa

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