Effects of acidity, concn. of potassium iodide and dosage of reducing agent on determination are investigated. It is simple and rapid with relative standard deviation 1.08%.

研究了酸度、碘化钾浓度、还原剂用量对测定影响。测定的相对标准偏差为1.08%，方法简单、快速。

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Due to its relative high sensitivity to precipitation acidity and environmental humidity, the corrosion rate of zinc at TSP was a little higher than that at GYQ.

而对于锌来说，由于其对降水酸度和环境湿度比较敏感，因此，铁山坪站点的腐蚀速率反而稍微高于城区观音桥站点。

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The actual acidity occurring in ASS is determined by the relative intensity and comprehensive result of the four processes.

酸性硫酸盐土的酸害影响是上述四个过程相对强弱与综合作用的结果。

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