The relations of magmatic rock with gold ore deposit and complex ore deposit in Jiaodong Region;

研究了铜陵狮子山矿田岩浆岩及金矿床矿石和蚀变岩石的稀土元素地球化学特征。

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The Baotou iron ore is complex ore that contains iron, rare-earth elements, fluorine, potassium and sodium.

包头矿是一种复合矿，它含有铁、稀土和氟、钾、钠等元素。

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Separation of copper, zinc and sulphur complex ore has been a difficult problem in the mineral processing field.

前言： 铜锌硫多金属矿石分离一直是选矿界的难题。

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The plaintiffs claim that 11 defendants, Evraz being one, by dubious means deprived them of their majority stake in a big iron-ore complex now part of the Evraz empire.

ECONOMIST: Russian steel

The deal digs Mr Albanese out of a hole the size of Tom Price, the huge iron-ore complex in the Pilbara region of Western Australia in which Chinalco stands to take a stake.

ECONOMIST: Face value

Indeed US politicians took no notice of the development of the ORE-STEM complex that Seaborg and others supported as our only way to continual increase our living standards and wealth.

FORBES: Erskine Bowles: National Debt Threatens U. S. Innovation