英语词汇“roller cone bit”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	roller cone bit
释义	roller cone bit roller cone bit [′rōl·ər ¦kōn ‚bit] (engineering) A drilling bit containing two to four cutters (cones) mounted on very rugged bearings. Also known as bit cone; rock bit.
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