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Translations:Air Brake System Overview/4/zh-hans

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制动管是一套由阀门、管道和软管组成的系统,贯穿整个列车,由主风缸为其加压。在每个车厢连接处,可以通过底部的一个称为折角塞门的阀门手动开启或关闭空气流动,可防止气压泄漏到大气中。在正常行车状态下,制动管保持5帕的压力。