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	non-european unity movement nonevaluative non-evaporable getter pump nonevaporable water non-evaporative getter non-event nonevent non-events nonevents nonevidence nonevidentiary objections no new friends no new information no new news no news is good news no new text non-exacerbated chronic disease non-exclusive nonexclusive non-exclusive license nonexclusive license non-exclusive prospecting licence non-exclusive, royalty-free non-exec nonexecutable statement

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