英语词汇“friction blocks”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	friction blocks
释义	friction blocks friction blocks [′frik·shən ‚bläks] (petroleum engineering) Thin blocks with cylindrical surfaces that drag on the inside of the well casing to prevent rotation of the packer (seal between the outside of tubing and inside of casing).
随便看	exogenic exogenicly exogenic toxicosis exogenote exogenous exogenous aneurism exogenous anxiety exogenous buffer exogenous cause exogenous creatinine clearance exogenous cycle exogenous depression exogenous dna exogenous electrification exogenous factor exogenous factors affecting thrombosis and hemostasis exogenous fecal contents exogenous fiber exogenous fibers exogenous hemochromatosis exogenous hyperglyceridemia exogenous hyperlipemia exogenous inclusion exogenous infection exogenous insulin

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