Mines and minerals are not included unless otherwise expressly provided.

除非另有其它明确规定，矿山和矿物不包括在内。

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They learn how to locate minerals and how to design and develop mines and systems for refining ore.

他们学习如何寻找矿物；如何设计和开发矿井和精炼矿石系统。

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Rio Tinto Minerals is a world leader in borates, with mines, processing plants, commercial and research facilities.

力拓矿石集团是生产硼酸锂的佼佼者，拥有自己的锂矿、锂加工厂和商业研究设备。

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Patnelli says Cluff's agreement with the government is in line ith Sierra Leone's new Mines and Minerals Act that requires companies to invest one tenth of annual revenue in local communities.

VOA: standard.2010.04.22

These are after all mines, often big mines, and the minerals extracted require complex and challenging refining to separate the chemically similar constellations of rare earth elements that are always collocated in various mineral concentrations and combinations.

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Thus reducing the number of mines we need and the new minerals we must dig up.

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For instance, Chinese producers of rare-earth minerals first drove down prices to uneconomic levels, and this led to the closing of mines elsewhere.

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