downspout t降液管
downspout leader雨水竖管
downspout elbow雨水管弯头
downcomer downspout降液管
Downspout Straps落水管抱箍
Downspout Shoe落水管靴
downpipe downspout水落管
Downspout Adapter水口适配器
downspout hanger雨水管卡子
N-COUNT（可数名词） A downspout is a pipe attached to the side of a building, through which rainwater flows from the roof into a drain. 排水管 [美国英语]
He installed rain gutters and downspouts.
他安装了雨水槽和排水管。