因此，慎重选择适当的处理工艺是污水处理设计的关键。

Therefore, careful selection of appropriate treatment technology is the key for wastewater treatment.

youdao

因此，慎重选择适当的处理工艺是污水处理设计的关键。

Therefore, careful selection of appropriate treatment technology is the key for wastewater treatment.

youdao