通过对边界品位法及盈亏平衡法的理论分析，确定下盘最大切岩高度。
The greatest height of footwall cutting is determined through the theoretical analysis of cut-off grade method and breakeven point method.
通过对边界品位法及盈亏平衡法的理论分析，确定下盘最大切岩高度。
The greatest height of footwall cutting is determined through the theoretical analysis of cut-off grade method and breakeven point method.
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