英语词汇“hydraulic packer holddown”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	hydraulic packer holddown
释义	hydraulic packer holddown hydraulic packer holddown [hī′drȯ·lik ′pak·ər ′hōl‚dau̇n] (petroleum engineering) A pressure-actuated anchor located below a production packer (the seal between tubing and casing) to prevent well pressure from forcing the packer upward in the casing.
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