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一、取消“实际贫化率”,代以岩石混入率贫化率的定义式 P=C-Cc/C×100% C是采前工业储量品位;Cc是采出矿石品位;C—Cc是矿石采出前后品位降
First, abolishing the “actual dilution rate” and substituting the definition of dilution rate of rock inclusion ratio, P = C-Cc / C × 100% C is the pre-harvest industrial reserve grade; Cc is the ore-bearing grade; C-Cc is Ore before and after mining grade drop