片语
delivery y pipe输送管
conveying pipe[建] 输送管
delivery long pipe高压长管
oil delivery pipe供油管,输油管
feed pump delivery pipe添水泵输出管
sediment delivery through pipe管道输沙
delivery pipe line输水管线
duct用导管输送;以导管封住
delivery water pipe line引水管线
air delivery pipe空气输送管
concrete delivery pipe混凝土输送管