It also showed that the emission rate of sulfur accorded with the climate and the frequency of acid rain of Guangdong province.

其排放速率与广东省的自然条件相关，与广东省酸雨频率吻合。

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Probe into Ningde city fall acid rain frequency and relation of season in the rain.

探讨宁德市降雨中酸雨频率与季节变化的关系。

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The frequency of the strong acid rain differed with various seasons, the highest in autumn and the lowest in summer.

四季中强酸雨频率各不相同，秋季最高，夏季最低；强酸雨的酸沉降量正在逐年增加；

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