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.
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