downspout

n.

水落管；

复数：downspouts

1. An eave trough used to convey rainwater from the roof to the downspout.
   用于传输屋顶的雨水到落水管檐沟。

Downspout filter
Run-off extension for downspouts
Water conducting downspout attachment
Self-retracting downspout discharge extension
Repositionable flexible downspout extension
Hinged extension for rainpipe downspouts
Hinged extension for rainpipe downspouts
Extension attachment for guttering downspouts
"Circling the Downspout of Empire": Post-Colonialism and Postmodernism
A mathematical model of glass flow and heat transfer in a platinum downspout