英语词汇“bullhead rail”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	bullhead rail
释义	bullhead rail bullhead rail n (Railways) railways a rail having a cross section with a bulbous top and bottom, the top being larger. Now largely superseded by: flat-bottomed rail
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