cutoff grade

常見例句

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.
  對礦石開采品位指標(biāo)體系問題進行了探討，認為我國必須從雙指標(biāo)體系轉(zhuǎn)變到單指標(biāo)體系。
• 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(xiàn)行的方法是按每個崩礦步距（而不是整個礦塊或礦體）計算收支平衡條件，從而確定放礦截止品位的。
• 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.
  該模型考慮礦體的開采順序和礦床不同區(qū)段的品位分布，實現(xiàn)了地下開采邊界品位在時間和空間上的動態(tài)結(jié)合。
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