After filamentous bacterium bulking the number of microbiota decreased, and rotifers, epistylis and arcella became the main population.

系统内发生丝状菌污泥膨胀后，微型动物种类减少，主要优势种群为轮虫、累枝钟虫、表壳虫。

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After filamentous bacterium bulking the number of microbiota decreased, and rotifers, epistylis and arcella became the main population.

系统内发生丝状菌污泥膨胀后，微型动物种类减少，主要优势种群为轮虫、累枝钟虫、表壳虫。

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