文中提出了应用级差品位指标动态评价岩金矿山生产各阶段资源利用程度的新方法。
This paper put forward a new method to carry out dynamic appraisal of the extent of resources utilization in each stage of gold mine production by using differential grade index.
从资源所有者的角度看，石油储量价值由该储量的价格级差和成本级差构成。
The value of oil reserves consists of price differential and cost differential from the point of view of the resource owner.
未经勘查的矿产资源即有原有价值，体现为超额利润—绝对矿租和第一形态级差矿租。
The mineral resources original value(the mineral resources before exploration)reflects the excess profit, which includes the absolute differential rent and the first differential rent.
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