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纯铱中杂质元素的发射光谱分析
Determination of trace impurities in purity iridium by atomic emission spectrometric
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贵金属合金元素分析方法 铜锰量的测定 火焰原子吸收光谱法
Methods for elementary analysis of precious alloy -- Determination of copper and manganese contents --The flame atomic absorption spectrometric method
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贵金属合金元素分析方法 锆量的测定 EDTA络合滴定法
Methods for elementary analysis of precious alloy -- Determination of zirconium content -- EDTA complex metric titration
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出口贵金属检验规程
Rules for the inspection of precious metal for export
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