irrigating unit

例句：

1. 1.The irrigation unit is responsible for delivering water to the plants.
   灌溉单元负责将水输送到植物上。
2. 2. The irrigation system was designed to conserve water and reduce waste.
   灌溉系统被设计来节约用水和减少浪费。
3. 3. The farmer used a manual irrigation unit to water his crops during the dry season.
   农民在干旱季节使用手动灌溉装置来给他的庄稼浇水。