【判断题】
超高压蒸汽发生系统的连续排污和间断排污管线材质通常完全相同
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折返站遇有特殊情况必须外出时,须经请假批准后,一人以上集体行动,并指定一名安全负责人,随时与车长保持通信联系。
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动车组终到后,由列车长、机械师、乘警对全列进行检查,确认设备状态正常,无遗留火种和闲杂人员。
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