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placesMar 7, 20190:52pending

京张高铁四电工程全面展开

魅力中国

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3月5日,京张高铁在新保安至下花园区段成功架设一条1300多米长的接触网导线,由此,京张高铁的通信、信号、电力和电气化的“四电”工程全面展开。

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京张高铁四电工程全面展开

魅力中国

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