英语词汇“buttonhead”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	buttonhead
释义	buttonhead buttonhead [′bət·ən‚hed] (design engineering) A screw, bolt, or rivet with a hemispherical head. buttonhead buttonhead The head of a bar, bolt, rivet, or screw which is hemispherical in shape; usually the head is less than a full hemisphere and has a flat bearing surface.
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