影响水质的内部因素主要有蓄水装置材质、水力停留时间和水的流动特性。

The main internal factors effecting water quality in water storing unit are material, water retention period and flowing character of the water in the unit.

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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。

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.

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概述了刺参养殖水质变化特点、存在问题以及影响因素，提出了刺参养殖水质的调控和优化措施。

The characteristics, problems and influence factors of water quality during sea cucumber cultivation were summarized and the measures were proposed.

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