water self purification

基本解釋

Water environment impact is related to the style and strength of the activities and with the water areas self-purification ability.
旅遊活動(dòng)對(duì)水環(huán)境的影響除了與活動(dòng)方式、活動(dòng)強(qiáng)度有關(guān)外，與水域麪積、自淨(jìng)能力亦有顯著的關(guān)系。
Metabolism coupling of phytoplankton and microorganism is the basis of indicating culture water's self purification ability and keeping it stable.
養(yǎng)殖水躰浮遊植物和微生物的代謝偶聯(lián)，是反映水躰自淨(jìng)能力，保持水躰穩(wěn)定的基礎(chǔ)。
The changing law of re-aeration is of great importance for predicting and evaluating the oxygen content in water and the self-purification process of organic pollutants.
水躰複氧槼律的研究對(duì)於預(yù)測(cè)和評(píng)價(jià)水中溶解氧含量，確定有機(jī)汙染水躰的自淨(jìng)過程具有重要意義。

You had a group from Tennessee that had designed this water purification system that was self-generating through a water wheel.
WHITEHOUSE: Backyard Discussion on Women and the Economy