英语词汇“hook-wall packer”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	hook-wall packer
释义	hook-wall packer hook-wall packer [′hu̇k ‚wȯl ‚pak·ər] (petroleum engineering) Fluid-proof seal between the outside of oil well tubing and the inside of the casing; hooks hold it in place.
随便看	-taker taker take refuge in take refuge in (something or some place) take revenge take revenge against take revenge (against/on someone or something) take revenge on take risks take roll take root take root, to take round takers takes takes a back seat takes a backseat takes a bath takes a bath on takes a bawling out takes a beating takes a bite out takes a bit out of takes a bow takes a break

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