self-purification的用法和樣例：
辭彙搭配
- natural self-purification capacity 天然自凈能力...
- biological self purification 生物自凈酌
- self purification 自凈酌
- rate of self-purification 自凈速率
- self-purification capacity 自凈能力
- self purification process 自凈過程
- effect of self-purification 自凈效應
- self-purification ability 自清能力
- self-purification parameter 自凈參數
- natural self-purification 天然自凈化作用...
- biological self-purification 生物自凈作用...
- mechanism of self-purification 自凈機理
- self-purification constant 自凈常數
