外部: outside; external给水: feedwater; water supply管路: pipeline; canal; channel辅给水管路: auxiliary feed line给水管路: feed line; feed pipe; feed water line; feedwater system; feedwater line主给水管路: main feed line; main feed pipe line; main feed pipeline; main feedline重力给水管路: gravity feed line; gravity-feed line辅助的给水管路: auxiliary feed line给水管: feed pipe; feed water pipe; feedpipe; service pipe line; servicepipe; stand pipe; water crane; water feeder; water service pipe; water supply pipe给水管, 送水管: water supply pipe补给水管: make uwater pipe; make-up pipe给水管道: feed water piping; feedwater piping; water supply conduit (pipeline)给水管理区: water district给水管零件: water supply fittings给水管图: water service plan给水管网: water supply network; waterline network给水管系: feed piping; feed water piping; feedpiping给水管线: water supply line; water-supply line给水管源: water supply sources供给管,给水管: supply pipe锅炉给水管: boiler feed pipe立管,给水管: stand pipe内给水管: internal feed pipe循环给水管: circulation supply pipe有孔给水管: perforated feed pipe