1. Used AgNO3 Standard solution to measure the content of mercapto heterogeneous ring compound and thioureido derivative in acid coppering gloss agent continuously by potentiometric titration.
以硝酸银标准溶液，采用电位滴定法，连续测定酸性镀铜光充剂中的巯基杂环化合物和硫脲衍生物的含量。
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2. Used AgNO3 Standard solution to measure the content of mercapto heterogeneous ring compound and thioureido derivative in acid coppering gloss agent continuously by potentiometric titration.
以硝酸银标准溶液，采用电位滴定法，连续测定酸性镀铜光充剂中的巯基杂环化合物和硫脲衍生物的含量。
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Copper conducts electricity better than other materials. 铜比其他材料导电性能好。
The chemical symbol for copper is "Cu". 铜的化学符号是Cu。
The copper has been burnished. 铜已被抛光。
What color is copper sulphate solution? 硫酸铜溶液是什么颜色？
