名词短语
中文翻译：自我净化速率
同义词：
['self-cleansing rate', 'self-renewal rate']
例句：
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1. The rate of self-purificationis a critical factor in determining the successof an ecosystem.
自我净化速率是决定生态系统成功的关键因素。
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2. The study found that therate of self-purification was significantlyhigher in areas with more pollutants.
研究发现，在污染更严重的地区，自我净化速率显著更高。
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3. The rateof self-purificationis influenced by various factors suchas temperature and humidity.
自我净化速率受到温度和湿度等多种因素的影响。