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mechanized top caving mining

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  • 综放开采

双语例句

    1. With the increase of the depth of coal seams mined, rock bursts will easily occur in gateways with fully-mechanized sublevel caving mining.
      摘要随着煤矿开采深度增加,综放开采回采巷道易发生冲击地压危害。

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