英语词汇“edge rail”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	edge rail
释义	edge rail noun 1. : a railroad rail set on edge with which a flanged wheel with a conoidal tread is used — contrasted with tram rail 2. : a guardrail laid alongside the main rail at a switch
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