approach singal 中文意思是什麼
approach singal
解釋
列車近站信號-
When handling the eventuality of a train on fire and stalled in a tunnel, the mass transit railway in hongkong originally adopted a conventional singal - end detrainment approach to ensure passengers detain in the unpward direction
摘要在撤離被困在地鐵隧道中著火列車乘客時，香港地鐵公司原來採用傳統從上風口單方向撤離的辦法。
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