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兖矿集团有限公司本部矿井根据采场条件,积极优化工作面开采设计及回采工艺,大大提高了煤炭回收率,创造了显著的经济和社会效益。
Yankuang Group Co., Ltd. mine headquarters in accordance with stope conditions, and actively optimize face mining design and mining process, greatly improving the recovery rate of coal, and create significant economic and social benefits.