The results were that the ore dilution and loss were decreased, the recovery was increased, the cost of mining was reduced, and good economic and social results were obtained.

降低了矿石的贫化损失，提高了回收率，减少了采矿成本，获得了良好的经济效益和社会效益。

youdao

Ore cost for all town buildings is reduced by 1.

所有本方城镇建设时矿石消耗量- 1。

youdao

By using drilling in pit, ore reserve classification is increased, risks of underground mining engineering are reduced and avoided.

主要阐述了矿区通过实施坑内钻探，提高储量级别，降低和避免井下采矿工程风险，节约了成本，增加了效益。

youdao

Mine grades at Meadowbank were 22% higher in the third period versus the same time last year because of reduced ore dilution and higher-than-expected grades in the Goose pit.

FORBES: Production At Agnico-Eagle's Meadowbank Mine Drives Performance

But the company has been facing difficulties in the recent past with lower quality copper ore, resulting in reduced production levels for the company.

FORBES: Metals Still Strong Enough To Lift Freeport To $60

India is expected to become a net iron-ore importer in the fiscal year that began April 1 because of reduced output, but Thursday's order could mean a gradual turnaround in the situation.

WSJ: Court Eases Mining Ban in Karnataka