downpipe downspout水落管
DOWNPIPE ASSY前管总成
downpipe shoe水落管口
round downpipe圆水落管
concealed downpipe暗雨水管
feed downpipe下料口
blow-downpipe放空管
wash-downpipe冲洗管
galvanized iron sheet downpipe白铁皮水落管
N(名词) a pipe for carrying rainwater from a roof gutter to the ground or to a drain 落水管 (Also called rainwater pipe, drainpipeUsual US and Canadian name downspout) [英国英语]