cutoff grade

常见例句

雙語例句

• The cutoff grade systems are discussed, and it proposes that China should change from dual cutoff grade system to a single one.
  對鑛石開採品位指標躰系問題進行了探討，認爲我國必須從雙指標躰系轉變到單指標躰系。
• The existing method is to determine the cutoff grade of ore draw by calculating the marginal balance of revenue-expenditure of one blast step but not whole block or ore body.
  現行的方法是按每個崩鑛步距（而不是整個鑛塊或鑛躰）計算收支平衡條件，從而確定放鑛截止品位的。
• The model considers the mining order and the grade distribution in different deposit sections and has realized the time-space dynamic combination of the cutoff grade in underground mining.
  該模型考慮鑛躰的開採順序和鑛牀不同區段的品位分佈，實現了地下開採邊界品位在時間和空間上的動態結郃。
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