英语词汇“grade signal marker”的意思、用法、释义、翻译、读音、例句、短语、词组-英汉翻译词典-复社网

单词	grade signal marker
释义	grade signal marker 上坡信号标志(在双线上准许货物列车限速通过)
随便看	wire-tying machine wire tying machine wire-tying mechanism wire tying mechanism wire type wire-type acoustic delay-line wire type acoustic delay line wire type diathermic cutter for fiberscopes wire-type fuel element wire-type penetrometer wire type recorder wire type transducer wire under voltage wire up wire vectis wire vehicle detector wire velocity probe wire velvet wire walker wire-walker wirewalker wirewalkers wire-walking wirewalking wirewater

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