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	punishing one for punishing oneself by punishing oneself for punishing oneself with punishing one with punishing ourselves by punishing ourselves for punishing ourselves with punishing someone by punishing someone for punishing someone with punishing something by punishing something for punishing something with punishing them by punishing them for punishing themselves by punishing themselves for punishing themselves with punishing them with punishing us by punishing us for punishing us with punishing with punishing you by

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