percolating filter是什么意思

用法例句

Aim at the factual condition in engineering,the concrete plan of initial rainwater discarding was put forward,and based on the manual ecologic filtering and filtration purification technique,the economic and effective rainwater treatment processes was brought forward.

分析了屋面初期雨水弃流的重要性和弃流方法的选择,对雨水净化工艺进行了介绍与讨论,针对工程实际情况提出了具体的初期雨水弃流方案和以人工生态渗透过滤净化技术为主体的高效经济的雨水处理工艺。