雨水排放主渠 storm-water main drain
去水排水渠 outlet drain
雨水渠排水口 storm-water outfall
排水主管 Drain header
污水主渠 trunk sewer
主排水泵 Main drainage pump
主排水系统 main drainage system
暗渠排水 underdrainage; Conduit; Closed ditch drainage; Culvert
舱底水排水系统 bilge arrangement
城市给水排水工程 municipal water and wastewater engineering
出口排水渠 outlet drain
淡水排水量 fresh water displacement
地表排水渠 surface drainage channel
地面排水渠 floor drain; surface channel
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
碟形排水渠 dish drainage channel
顶盖积水—排水 head cover water seepage and drainage