common waste pipe 共用废水管
main waste pipe 主要废水管
cast iron waste pipe 铸铁废水管
indirect waste pipe 间接排水管
steam waste pipe 残汽排出管
Acid Waste Pipe 排酸管
waste pipe network system 污水管网系统
accepted waste pipe 共用废水管
waste water pipe 排水管
N a pipe to take excess or used water away, as from a sink to a drain 废水管
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