The fine tungsten powder has been effectively obtained by hydrogen reduction of purple tungsten oxide.

用氢还原紫色氧化钨可高效地获得细钨粉.

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The principle and the apparatus of hydrogen reduction of metal oxides are described.

叙述了氢气还原金属氧化物的过程、装置和工艺过程.

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Pure metallic germanium was obtained through the conventional process of hydrolysis and hydrogen reduction.

用传统的水解-氢还原工艺制得了纯锗.

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