cutoff grade

常见例句

双语例句

• The cutoff grade systems are discussed, and it proposes that China should change from dual cutoff grade system to a single one.
  对矿石开采品位指标体系问题进行了探讨，认为我国必须从双指标体系转变到单指标体系。
• 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.
  现行的方法是按每个崩矿步距（而不是整个矿块或矿体）计算收支平衡条件，从而确定放矿截止品位的。
• 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.
  该模型考虑矿体的开采顺序和矿床不同区段的品位分布，实现了地下开采边界品位在时间和空间上的动态结合。
  www.jsks.net.cn
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