Coal is always a main energy sources in our country,and exploitation of coal was threatened by many mine geological disasters,in which the water inrush from mine is the most primary problem.

 
  • 煤炭一直是我国的主要能源,煤炭开采受到多种矿井地质灾害的威胁,其中最大安全问题是矿井突水事故。
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