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重点阐述露天采场后期挖潜的边坡角加陡的研究、挖潜的方法和采剥工艺的实施，并说明挖潜的显著经济效益
The paper mainly elaborates the research on the slope angle plus steepness of the tapping potential in the open-pit stope, the method of tapping the potential and the stripping process, and illustrates the significant economic benefits of tapping the potential