英语词汇“bottoming drill”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	bottoming drill
释义	bottoming drill bottoming drill [′bäd·əm·iŋ ‚dril] (design engineering) A flat-ended twist drill designed to convert a cone at the bottom of a drilled hole into a cylinder.
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