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银精矿化学分析方法.氧化镁量的测定
Methods for chemical analysis of silver concentrates--Determination of magnesium oxide content
参考页数：7P.;A4
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银精矿化学分析方法.硫量的测定
Methods for chemical analysis of silver concentrates--Determination of sulfur content
参考页数：8P.;A4
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银精矿化学分析方法.三氧化二铝量的测定
Methods for chemical analysis of silver concentrates--Determination of oxide aluminum content
参考页数：8P.;A4
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银精矿化学分析方法.砷量和铋量的测定
Methods for chemical analysis of silver concentrates--Determination of arsenic and bismuth contents
参考页数：9P.;A4
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银精矿化学分析方法.铜量的测定
Methods for chemical analysis of silver concentrates--Determination of copper content
参考页数：9P.;A4
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银精矿化学分析方法.金和银量的测定
Methods for chemical analysis of silver concentrates--Determination of gold and silver contents
参考页数：6P.;A4
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银精矿
Silver concentrate
参考页数：6P.;A4
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首饰.贵重金属合金纯度
Jewellery. Fineness of precious metal alloys
参考页数：14P.;A4
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