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建立了建下煤炭资源可持续开采的概念，提出了最佳回采率与建下煤炭资源可持续开采的关系，推导出企业收益最大时的最佳回来率应满足的条件。
The concept of sustainable mining of coal resources was established, the relationship between the optimal recovery rate and the sustainable exploitation of coal resources was put forward, and the optimal return rate should be satisfied when the return of the enterprise was maximum.