英语词汇“disk-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	disk-wall packer
释义	disk-wall packer disk-wall packer [′disk ‚wȯl ‚pak·ər] (petroleum engineering) A disklike seal between the outside of the well tubing and the inside of the well casing; used to prevent fluid movement from the pressure differential above and below the sealing point.
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