The rare earth lanthanum oxide doped molybdenum alloys containing different volume fraction lanthanum oxide particles were prepared by powder metallurgical processing.

使用粉末冶金工艺制备了不同体积分数稀土氧化镧颗粒掺杂的钼合金。

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The Group is involved in prospecting, exploration, extraction, refining, and metallurgical processing of minerals and production, marketing, and sale of base and precious metals.

集团的业务涉及勘探、探测、开采、提炼、矿物的冶炼加工以及生产，还有基本金属和贵金属的销售。

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Various metallurgical processing routes for ilmenite are systematically described. Their relative merits and demerits are explained. Some developing trends of ilmenite metallurgy are forecasted.

对以钛铁矿为原料的各种冶金处理工艺作了系统的论述，阐明了各种处理工艺的相对优缺点及应用前景，并提出钛铁矿冶金工艺的发展趋势。

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This Study must include adequate information on mining, processing, metallurgical, economic, and other relevant factors that demonstrate, at the time of reporting, that economic extraction is justified.

FORBES: But Every Generation Does Indeed Exhaust Its Mineral Reserves