proved mineral reserves

常见例句

It exists the good condition for Mn mineralization in Gansu Province, but the proved reserves is lower due of the lower exploration level of Mn mineral.
甘肃省锰矿具有较好的成矿条件，由于以往锰矿勘查工作薄弱，探明储量不多。如能加大锰矿勘查投入力度，有望在近期实现找矿突破。
The economic benefits of nonferrous metallic mineral exploration of fourty years are summarized with the help of "ratio of output to investment" and average cost of proved reserves.
以资金的“投入产出率”和探明储量平均勘查成本两项指标概略地分析了主要矿种地质勘查工作的经济效益。
In the light of the prospect of China' s oil & gas mineral resources exploration, however, the oil resources still have great potential and the gas proved reserves will increase by a large margin.
从我国油气资源勘查前景看，石油资源仍具有较大潜力，天然气探明储量仍将大幅增长。