1) self-purification
[英]['selfpjuərifi'keiʃən] [美][,sɛlf,pjʊrəfɪ'keʃən]
自净;自净作用;自然净化
2) natural purification
自然净化作用;自净
3) self-purification
[英]['selfpjuərifi'keiʃən] [美][,sɛlf,pjʊrəfɪ'keʃən]
自净化，自纯化，自净[作用]
4) natural attenuation
自然净化
1.
In order to understand the natural attenuation of arsenic and its mechanisms in the mining environment,water and sediment samples collected from the stream system of a high-arsenic coal mining area in Xingren County were analyzed.
为了解矿山环境中砷的自然净化能力及其净化机制,对兴仁典型高砷煤矿区溪流水系环境进行采样分析。
2.
Aimed at arsenic pollution and the natural attenuated of arsenic in the High-Arsenic coal mining area in Xingren,the paper discusses iron-arsenic natural attenuation system and sulfur-arsnic natural attenuation system in the acidic water,respectively,and discusses the process of iron-arsenic natural attenuation system by chemical kinetics.
本文针对兴仁县高砷废弃煤矿区的砷污染及其自然净化过程,分别从酸性水体中的铁-砷自净体系以及硫-砷自净体系等两个不同方向的系统展开了研究和探讨,并且对前者进行了反应动力学研究。
5) natural purification
自然净化
1.
On the natural purification of the water in offtake;
排水渠污水自然净化研究
补充资料：自净
【自净】
（术语）三自之一。(参见：三自)
（术语）三自之一。(参见：三自)
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条