With the severity of drinking water micro-pollution and the limitation of traditional clarification processes, people have to research and develop the new clarification processes.
水源微污染问题日益加剧，加上常规工艺的局限性，迫使人们研究和开发新的净水工艺。
And "Little Prince" on the water like a thorough clarification of people feel warmth and tranquility.
而《小王子》就如水般澄清透彻，使人安宁而且心生暖意。
The water self-clarification ability in the reservoir area is much lower and the risk of the emergency of water pollution is more serious after the accomplishment of water storage in Three Gorges.
三峡库区蓄水后水体自净能力降低，突发水污染事故对库区水质的威胁加大。
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