二、单词拼写。1. Silver, gold, and platinum are precious(贵重的)m2. Barack Obama used to be a p
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Photoionization cross-sections and energy levels of gold, iron, platinum, silver, and titanium in silicon 来自 掌桥科研 喜欢 0 阅读量: 28 作者:M Okuyama,N Matsunaga,JW Chen,AG Milnes 摘要: The photoionization cross-sections of various deep impurities of interest in solar-grade silicon for ...
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Insoluble anode sludges from electrolytic refining contain silver, gold, and platinum metals. Silver is recovered from the mud by treatment with sulfuric acid. Base metals dissolve in sulfuric acid leaving silver mixed with any gold present in the mud. Silver is separated from gold by electrolysis...