因此，混凝沉淀是雨水径流处理利用及污染控制最简便易行且有效的处理方法。

So, it was believed that coagulation and sedimentation might be the simplest and very effective way to treat the rainwater runoff and for pollution control.

youdao

因此，混凝沉淀是雨水径流处理利用及污染控制最简便易行且有效的处理方法。

So, it was believed that coagulation and sedimentation might be the simplest and very effective way to treat the rainwater runoff and for pollution control.

youdao