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放顶煤开采采出率的高低直接影响着放顶煤开采的推广，针对影响放顶煤开采采出率的因素，介绍了中硬煤层放顶煤开采提高采出率的途径。
The caving rate of top coal caving directly affects the promotion of top coal caving mining. According to the factors that affect the caving rate of top caving coal, the ways to increase the recovery rate of top caving coal in medium hard coal seam are introduced.