关键词： 伊乐藻；冬季；生长量；净化效果 ；克藻 [gap=5839]Key words: Elodea nuttallii; winter; growth; purification effect; allelopathic effect
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water quality purification effect 水质净化效果
purification effect along the way 沿程净化效果
Combination of two constructed wetlands have better purification effect of pollutants, after two-level treatment, can improve the removal rate of 20%-30%.
两级人工湿地组合对污染物有较好的净化效果,二级在一级人工湿地系统处理的基础上可以提高去除率20%～30%。
参考来源 - 人工湿地系统对污水处理厂二级出水净化实验研究With the development of purification technique, purification effect has been gradually improved.
随着熔体净化技术的不断发展，净化效果得到不断的提升。
参考来源 - 铝熔体电熔剂净化工艺的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The product has the advantages of simple structure, low cost, convenient operation, and good purification effect and is suitable for drinking water in families in particular.
该产品结构简单，成本低，使用方便，净化效果好，特别适合家庭饮水用。
According to the above conclusions, we found that the water landscape of Nanjing city has a large optimization space, and the tested plants both have good view and purification effect.
根据调研及试验分析，发现南京主城区的水体景观存在着较大的优化空间，供试植物材料兼具良好的观赏与净化效果。
The results show that the system using new combined fillers has better purification effect on polluted river water and higher hydraulic loading than the system using only river sand as fillers.
结果表明，新型混合填料渗滤系统对受污染河水的净化效果较好，系统的水力负荷也较单独以河砂为填料的渗滤池有大幅提高。
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