direct-flow water supply system

例句：

1. 1. The new direct-flow watersupply system greatly improves the efficiency ofour tap water usage.
   新的直流供水系统大大提高了我们自来水的使用效率。
2. 2. Thecity has installed a new direct-flowwater supply system to reduce pollution in theriver.
   该市已安装一个新的直流供水系统，以减少河流的污染。
3. 3.The construction of this direct-flow watersupply system is expected to save us alot of energy and resources.
   这个直流供水系统的建设预计将为我们节省大量的能源和资源。