This supply is increased , each year , by a percentage of the new gold mined .

每年，随着黄金开采量的增加，货币性黄金的供应量也在增加。

So-called alluvial diamonds are smoother edged than mined diamonds .

所谓的金刚石沙矿比开采的矿井里的钻石棱角平滑一些。

The data could be mined to improve public transport and security .

挖掘出的这些数据，可用来改善公共交通及安全。

Aquamarine is mined around the world .

海蓝宝石是世界各地的雷区。

The road was heavily mined .

这条路埋了大量的地雷。