It is said that the location of vast reserves of higher-grade ores of most minerals favors increasing dependence of all industrialized regions on imports from less-developed countries.

据说，更高等级的矿石越来越依赖不发达国家的工业化地区。

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Precision of reserves, grade and spatial distributing is the base of economical appraise, research of feasibility, programming of mine and optimize exploitation.

准确的储量、品位及其空间分布，是对矿床进行技术经济评价、可行性研究、矿山规划设计以及开采计划优化的基础。

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In this paper, a simple method of grade reserves estimation is presented.

由此提出了品位-储量估值的简易方法。

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Proven and probable mineable reserves total 2.018 million ounces at an average gold grade of 2.06 grams per ton gold.

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Manson said that he expects the mine life to increase as well as the reserves since the deeper they mine, the wider the kimberlyte mineralization and the grade grows.

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