英语词汇“bridge guard”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	bridge guard
释义	bridge guard noun : a guard on a railroad track placed at bridges or gantlet tracks and consisting of two rails gradually drawn in to meet in the center of the track
随便看	nitrometer nitromethane nitrometric nitromuriatic nitromuriatic acid nitro musk nitronaphthalene nitrone nitronic nitronic acid nitronium nitroparaffin nitrophenol nitro phenol nitrophenol nitrophilous nitrophyte nitrophytic nitro powder nitropropane nitroprussiate nitroprusside nitroprusside nitros nitros-

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