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高铁安全通过的8秒钟如何守护 记者带你飞檐走壁去体验
在贵州大山深处的北盘江上,我国跨度最大的高铁铁路桥横亘于此。这里是沪昆高铁的必经之地,每天有一百多趟列车从桥上通过。高铁过桥,只需要8秒钟,乘客几乎感觉不到。但这8秒钟背后,在乘客看不见的轨道下方,一支平均年龄只有28岁的铁路巡检小组,练就飞檐走壁之 ...
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