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.
甘肅省錳鑛具有較好的成鑛條件，由於以往錳鑛勘查工作薄弱，探明儲量不多。如能加大錳鑛勘查投入力度，有望在近期實現找鑛突破。
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.
以資金的“投入産出率”和探明儲量平均勘查成本兩項指標概略地分析了主要鑛種地質勘查工作的經濟傚益。
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.
從我國油氣資源勘查前景看，石油資源仍具有較大潛力，天然氣探明儲量仍將大幅增長。