rainwater pipe

基本解釋

After being filtered, the rain water flows into a water-purifying pipe 50 and is discharged by a blow-off pipe 20 connected with the water-purifying pipe.
雨水經(jīng)過(guò)過(guò)濾后流入凈水管中50，再通過(guò)和凈水管連接的放水管20排出。
ip.com
The two-phase optimization theory was adopted for designing the sewage pipe, and the ground slope consensus method was used for optimization calculation of rain water pipe.
對(duì)污水管道采用兩相優(yōu)化理論設(shè)計(jì)，對(duì)雨水管道采用與地面坡度一致法進(jìn)行優(yōu)化計(jì)算。