complex water distribution systems的用法和样例：
例句
- Treatment installations and distribution networks for water require important work for reinforcement and extension.
水处理设施和供水管网需要进行大规模的改建和扩建。 - The principle and the basic structure of the leak detection and location system for water pipelines are introduced.
介绍了自适应供水管网泄漏检测及漏点定位的基本原理及仪器系统的构成。
