• The vital problems to be solved in Shendong mine are the dynamic pressure damage of thin rock strata roof under thick sandy soil soft stratum and the loss of water and soil under mining.

    浅埋煤层基岩砂土松散层顶板灾害采动水土流失神东矿区急需解决的重大问题之一。

    youdao

  • The vital problems to be solved in Shendong mine are the dynamic pressure damage of thin rock strata roof under thick sandy soil soft stratum and the loss of water and soil under mining.

    浅埋煤层基岩砂土松散层顶板灾害采动水土流失神东矿区急需解决的重大问题之一。

    youdao

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