Ground collapse will seriously threaten the mine production security and destroy the surface ecological environment.

地表塌陷严重威胁着矿山安全生产，破坏地表生三态环境。

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Ground collapse will seriously threaten the mine production security and destroy the surface ecological environment.

地表塌陷严重威胁着矿山安全生产，破坏地表生三态环境。

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