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... apart from digging a few artificial tunnels about 80 meters deep, they had almost nothing to gain.
Why is this happening? Is the search and rescue work under modern technology so inefficient?
In fact, the rescue of underground landslides is a worldwide problem.
I still remember that more than a hundred years ago, 33 miners in Chile were buried underground due to landslides, which shocked the whole world. At that time, the local political assistant mobilized all available re ...
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