盐基阳离子排放清单的建立，对于中国酸沉降控制有重要的意义。
A thorough inventory of base cation emissions in China is needed to develop programs for acid deposition control.
根据我国酸沉降污染的状况，借鉴国外酸沉降的经验，提出了我国酸沉降控制的指标、主要控制对象和综合控制对策。
According to domestic condition and foreign experience about acid deposition, indicators, main control targets and comprehensive targets are put forward in order to control acid deposition in China.
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。
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。
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.
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