water requirements for self purification of the stream

• 自净需水量

water requirements for self purification of the stream的用法和样例：

例句

1. The process that oiliness wastewater into water disappears as time goes on is called water self-purification.
   进入水体的油污随着时间的推移会逐步消失，这就是水体的自净作用。
2. For example, manufacturers created dirt and water repellent paint after studying the lotus flower, which has a self-cleansing surface.
   例如，从莲花叶的自净能力中得到启示而研究出排尘排水涂层。