waterworks item水务工程项目
waterworks pumps水厂泵
Waterworks Chemist水务化验师
waterworks operation给水系统管理
waterworks premises水务办事处
townlet waterworks小集镇水厂
sewage waterworks污水厂
waterworks ship水厂船
technical waterworks技术供水
N-COUNT（可数名词） A waterworks is a building where a supply of water is stored and cleaned before being distributed to the public. 自来水厂