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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