waste e pipe垃圾道
waste steam pipe废汽管;废水蒸汽管;废水蒸汽管英语
waste water pipe seal污水管密封
waste-pipe废水管
waste water pipe排水管
waste water pipe net污水管网
industrial waste water pipe工业废水管道
outdoor sanitary waste water pipe室外生活污水管道
main waste pipe主要废水管
N（名词） a pipe to take excess or used water away, as from a sink to a drain 废水管