英语词汇“automatic 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-现代词典

单词	automatic block signal
释义	automatic block signal noun : a railroad signal at the entrance of a block actuated automatically by and governing the movement of trains entering and using the block
随便看	prohibitor prohibitorum prohibitory prohibitory prohibitory injunction prohibitum pro indiviso proinsulin projapygidae projeck project project projectable projected projected projectile projectile projectile lathe projectilely projectile point projectile vomiting projecting projection projection projectional

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