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	undiscipline undisciplined undisclose undisclosed undisclosed agency undisclosed factoring undisclosed information, including trade secrets undisclosed principal undisclosed principals undiscomfited undiscordant undiscount undiscounted undiscounting undiscounts undiscouraged undiscouragedly undiscoverable undiscoverablely undiscoverably undiscovered undiscoveredly undiscovered (movie) undiscreet undiscriminating

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