• 结合露天采石场具体情况古井祥业石场山坡露天矿介绍了基于开采开采方法

    In view of special conditions in quarry the paper takes Gujingxiang side-hill quarry as an example, introducing cutting wall mining method based on mining with steeper working slope.

    youdao

  • 结合露天采石场具体情况古井祥业石场山坡露天矿介绍了基于开采开采方法

    In view of special conditions in quarry the paper takes Gujingxiang side-hill quarry as an example, introducing cutting wall mining method based on mining with steeper working slope.

    youdao

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