地下30米的高铁安全守护者
在广州市地下30米深处，有一群高铁安全守护者在默默工作，他们就是高铁的”地下卫士”。这些地下守护者是由高…
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在广州市地下30米深处，有一群高铁安全守护者在默默工作，他们就是高铁的”地下卫士”。这些地下守护者是由高…