Cobalt ores found in China have a high manganese content, which produces a more muted blue-gray color.

中国发现的钴矿含锰量高，因此呈现出较弱的蓝灰色。

Titanium ores and concentrates.

钛矿砂及其精矿。

Nickel ores and concentrates.

镍矿砂及其精矿。

Cobalt ores and concentrates.

钴矿砂及其精矿。

Copper ores and concentrates.

铜矿砂及其精矿。

Chromium ores and concentrates.

铬矿砂及其精矿。

Aluminium ores and concentrates.

铝矿砂及其精矿。

Other ores and concentrates.

其他矿砂及其精矿。

Zinc ores and concentrates.

锌矿砂及其精矿。

Lead ores and concentrates.

铅矿砂及其精矿。

Molybdenum ores and concentrates.

钼矿砂及其精矿。

Tin ores and concentrates.

锡矿砂及其精矿。

Precious metal ores and concentrates.

贵金属矿砂及其精矿。

Uranium or thorium ores and concentrates.

铀或钍矿砂及其精矿。

Hadn't twined ores of silver and lead been found?

不是发现过银和铅的混生矿吗？

Hence more effort was directed to beneficiate the ores.

因此，对于矿石的富集人们做了更多的努力。

In fact most of the silver was recovered from lead ores.

事实上大部分的银是从铅矿中回收的。

Microscopically the ores are medium grained to amorphous.

显微镜下，矿石为中粒至非晶质。

Iron ores and concentrates, including roasted iron pyrites.

铁矿砂及其精矿，包括焙烧黄铁矿。

Iron — and metal-concentrating bacteria create metallic ores.

铁——还有金属富集细菌造出金属矿团。

There were some fine specimens of rocks and ores in the museum.

过去这家博物馆有一些极好的岩石和矿物标本。

There were some fine specimens of rocks and ores in the museum.

博物馆里有些很好的岩石和矿石标本。

The Inca Indians used it to carry metal ores from mines in the mountains.

印加的印第安人用它把金属矿石从山中的矿里载运出来。

The ores of all three metals are plentiful, so it is easy to expand production.

这三种金属的矿藏很充足，所以扩大产能很容易。

In some high-grade ores, phenocrysts adhere intimately to the pseudomorphs.

在有些高级矿石内，斑晶紧连着假晶。

There are metal ores in the rocks nearby and ice in the shadows of the crater below.

附近的熔岩蕴含大量的金属矿石，火山口背阴的一边常年结冰。

In addition there are limestone iron ores andalusite quartz sand and kaolin etc.

此外还有石灰石、铁矿、红柱石、石英砂和高岭土等。

Their materials costs are largely governed by prices on world markets for fuels and ores.

物料成本在很大程度上受世界市场燃料和矿产价格的制约。

The conditions of formation and concentration for talc and chlorite ores are now well known.

对该矿床形成的条件及滑石和绿泥石矿石的含量已较清楚。