英语词汇“smashboard signal”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	smashboard signal
释义	smashboard signal noun : a railroad signal the arm of which is designed to be broken when passed in the stop position
随便看	jalousied jalousies jalpaite Jaluit Jalāl ad-Dīn ar-Rūmī jalīb ash shuyūkh jam jam cleat jam nut jam on the brakes jam riveter jam session jam sessions jam weld jam-pack jam-packed jam-packing jam-packs jam-up jam-ups jamadar jamadars Jamaica Jamaica apple Jamaica banana

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smashboard signal