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Rail
轨道交通
城市轨道交通供电系统通常包括两大部分，即对沿线牵引变电所输送电力的高性专用外部供电系统；以及从直流牵引变电所经降压、换流后，向
动车组电的直流牵引供电系统。
浙江省乐清市经济开发区 纬十七路198号
+86-0577-55770580
