street pipe system

例句：

1. 1. The street pipesystem is essential for maintaining the cleanlinessof the city streets.
   街道管道系统对于保持城市街道的清洁至关重要。
2. 2. The street pipesystem was designed to prevent water leaksand improve drainage.
   街道管道系统被设计用来防止漏水和改善排水。
3. 3. The street pipesystem has been upgraded to accommodate moretraffic and reduce congestion.
   街道管道系统已经升级，以容纳更多的交通并减少拥堵。