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

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	sram sramanera sram ii sramii sramp srams sram-t sran sranan sranang sranc sr and 100 srankl srao srap srapi srappa srapw sraq srar srarav sraravb srarm srarp sr-arq

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