Bad , nauseating smells coming from drainpipes into apartments.公寓排水管道发出恶臭.There are two pipes, ( waste water ) the drainpipes should be seamless pipe plated by zinc.卫生单元有两路排水管, ( 污水、疏水 ) 排水管为无缝钢管镀锌....

n.排水管( drainpipe的名词复数 )...

drainpipes的音标：drainpipes的英式发音音标为：[d'reɪnpaɪps]drainpipes的美式发音音标为：[d'reɪnpaɪps]...