英语词汇“block signal”是什么意思，“block signal”的读音、用法及例句翻译-烛光网

词汇	block signal
释义	block signaln.（名词） A fixed signal at the entrance to a railroad block, indicating whether or not trains may enter.火车行止信号：火车站入口处，指示火车是否可以进站的固定信号
随便看	affiance affianced affiances affiancing affiant affiants afficionado affidavit affidavits affiliate affiliated affiliates affiliating affine affined affined affines affining affinities affinity affinity card affinity group affirm affirmation affirmations

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