cut off grade 中文意思是什麼
cut off grade
解釋
邊界品位-
They are respectively named cut - off grade, marginal grade, economic grade and the average grade of an ore deposit
這4項品位指標依次為邊界品位、邊際品位、經濟品位和礦床平均品位。 -
Optimization of cut - off grade
邊界品位的優化
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