The characteristic of strata control - structural control - lithologic control all over thearea.

矿床控制因素显示出“地层 - 岩控 - 构控和时控”多位一体的特点.

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This paper focuses on the reform of the course of < Mining pressure and strata control >.

现在的采矿工程已不仅是开采问题,而且还要注意围岩稳定性和岩层控制.

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