英语词汇“advance 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	advance signal
释义	advance signal advance signal [əd′vans ′sig·nəl] (civil engineering) A signal in a block system up to which a train may proceed within a block that is not completely cleared.
随便看	prohibited items test prohibitedly prohibited me from prohibited one from prohibited personnel practices prohibited species quota prohibited steps order prohibited substance prohibited tax shelter transaction prohibited transaction prohibited transaction class exemption prohibited transaction exemption prohibited transactions prohibited user operation prohibiter prohibiters prohibit from prohibit her from prohibit him from prohibiting prohibition prohibition agent prohibitionary prohibition era prohibitionism

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