英语词汇“bell mouth”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	bell mouth
释义	bell mouth bell mouth [′bel ‚mau̇th] (design engineering) A flared mouth on a pipe opening or other orifice. (engineering) A defect which occurs during metal drilling in which a twist drill produces a hole that is not a perfect circle.
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