英语词汇“sand reel”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	sand reel
释义	sand reel sand reel [′san ‚rēl] (mechanical engineering) A drum, operated by a band wheel, for raising or lowering the sand pump or bailer during drilling operations. Also known as coring reel.
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