这可不是“科幻大片”！这是正在建设中的智能京张高铁 百年前詹天佑设计的京张铁路现在有多厉害？20230516 |《国家记忆》CCTV中文国际

这可不是“科幻大片”！这是正在建设中的智能京张高铁 百年前詹天佑设计的京张铁路现在有多厉害？20230516 |《国家记忆》CCTV中文国际

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这可不是“科幻大片”！这是正在建设中的智能京张高铁 百年前詹天佑设计的京张铁路现在有多厉害？20230516 |《国家记忆》CCTV中文国际 26:22
这可不是“科幻大片”！这是正在建设中的智能京张高铁 百年前詹天佑设计的京张铁路现在有多厉害？20230516 |《国家记忆》CCTV中文国际 CCTV中文
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