Many miners were entombed in the cave when there was an accident at the mine.
矿井发生事故时许多矿工葬身于坑内。
The accident that the facilities of people's air defense happen, because of rupturing, falling into the reason to leak, cave in and infiltrate by a large scale
人防设施发生的断裂、陷漏、塌方和大面积渗水；
The accident that the facilities of people's air defense happen, because of rupturing, falling into the reason to leak, cave in and infiltrate by a large scale
人防设施发生的断裂、陷漏、塌方和大面积渗水；
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