The diversification of water quality of the distribution network has been researched by this paper, especially the microbiology parameters and the influencing factors. This is a significant research.

因此，本文研究给水管网中水质的变化，尤其是微生物学水质指标的变化及影响因素具有重要的意义。

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Microbiology is the study of very small organisms such as bacteria, viruses, and fungi. Medical microbiology is especially interested in organisms that cause or make us vulnerable to disease.

医学微生物学是专门研究诸如细菌，病毒和真菌等微生物的一门学科，特别专注于那些会降低人体对疾病抵抗力的有机体。

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