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

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	ciceronianist ciceronism cichlasoma cichlid cichlidae cichoriaceae cichoriaceous cichorium cicindelidae cicisbeism cicisbeo ciconia ciconiidae ciconiiformes ciconine cicurate cicuta cicutoxin CID cidal -cidal cidarid cidaridae cidaris cidaroida

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