English | Abb. | 学名 | 日本語 | 略称 | |
---|---|---|---|---|---|
1 | clarification | 浄化作用 | |||
2 | biological purification reaction | 生物学的浄化作用 | |||
3 | cleaning effect by rain | 雨の浄化作用 | |||
4 | environmental purification process | 環境浄化作用 | |||
5 | natural purification | 自然浄化作用 | |||
6 | stream self purification | 河川の浄化作用 | |||