source-and-drain junction

例句：

1. 1. The engineer designed the source-and-drain junction to optimize the flow of water.
   工程师设计了水源与排水接头以优化水流。
2. 2.The construction crew worked diligently to ensure that the source-and-drain junction was installed correctly.
   施工队伍努力工作以确保水源与排水接头安装正确。
3. 3. The source-and-drain junction is a critical component in maintaining the integrity of the water system.
   水源与排水接头是维护水系统完整性的关键部件。