As one part of ornamental plants, ornamental ferns are characterized by such function as beautifying, greeting, coloring and purifying environment.
观赏蕨类植物属于观叶植物类，指具有一定的观赏价值，具有美化、绿化、彩化和净化等功能的蕨类植物。
The above process has the advantages of low energy consumption, purifying environment and is adapt to waste water dispersal treatment in south China.
该工艺适用于南方小城镇地区的污水分散处理。
Among various techniques for purifying environment, the photocatalytic degradation technology is paid greater attention as a new environment-purifying technique.
在各种环境净化方法中，半导体异相光催化降解技术作为一种新型的环境净化技术已经越来越为人们所重视。
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