英语词汇“block signal”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	block signal
释义	block signal noun also block signal system : a fixed signal at the entrance of a block to govern railroad trains entering and using that block — compare block system 2
随便看	dado rail dadoxylon dads dae daedal daedalea daedalean daedalian daedalic daemon daemonelix daemonian daemonic daemonology daena daeva dafadar daff daffadilly daffadowndilly d'affaires daffery daffing daffodil daffodil

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