The acidity of precipitation in equilibrium with atmospheric CO2 and SO2 has been calculated for both clean and polluted areas.

本文计算了降水与大气CO_2和SO_2处于平衡态时，干净地区和污染地区的降水酸度。

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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 trend of the wet deposition between 1987 and 2004 in Beijing city was analyzed by using two parameters, e. g. precipitation acidity and wet deposition fluxes.

通过分析降水酸度和沉降量2个酸沉降控制指标，得出北京市近二十年（1987~2004）湿沉降特征变化趋势。

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