坝体排水  drainage of dam; drainage in dam body

舱底水排水系统  bilge arrangement

城市给水排水工程  municipal water and wastewater engineering

淡水排水量  fresh water displacement

刀刃位置排布  cutting edge stagger method

低水位排沙运行  operation in desilting at low level

地面水排水  surface water drainage

地下水排水  ground water drainage

地下水排水工程  groundwater drainage works

顶盖积水—排水  head cover water seepage and drainage

防水排水  waterproofing and drainage

复合排水排汽倒置式刚性屋面  rigid inverted roof with compound exhaust and drainage functions

给水排水  water supply and discharge; Water and Wastewater; supply water and drainage; water supply and drainage; Water Supply and Drainage Engineering; Water Supply and Sewerage; feed water and drainage; water & wastewater engineering; Water and Wastewater Engineering

给水排水阀  water surply valve

给水排水工程  Water and Wastewater Engineering; Water Supply and Drainage Works; water supply and water engineering; water and waste water engineering; watersupply and drainage engineering

给水排水工程设计  Designing of water and wastewater engineering

给水排水管道  feed water and drainage pipeline; feed water and drain pipeline

给水排水系统  water supply and discharge system

供水排水  water supply and drainage