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本文介绍了用低分段分采空场法、高分段分采空场法和联合分段分采空场法回采急倾斜极薄矿体时,降低矿损贫化的途径。
This paper introduces the ways to reduce the mineral loss and depletion when mining very steep ultrathin ore body with low sub-section sub-field method, high sub-section sub-field method and combined sub-section sub-field method.