The official also reminded the general public, less than normal due to the current flow of the Xiangjiang River, Xiangjiang reduced self-purification of water, so water will have some impact.
该负责人同时提醒广大市民，由于目前湘江流量偏少，湘江水的自净作用减弱，因而水质会有一定影响。
2
As a promising technique, photocatalysis is valuable for environmental cleaning and remediation. It has been applied in water treatment, gas purification, sterilization, and self-cleaning material.
光催化技术做为一种污染治理技术，应用于污水治理、气体净化、光催化杀菌和自清洁材料等方面。
3
It was a quantitative target for describing of self-purification capacity of water environment of area.