irrigation of lacrimal passage

例句：

1. 1. Thefarmers use irrigation to irrigate their crops.
   农民使用灌溉来给作物浇水。
2. 2. The irrigation systemis responsible for delivering water to the plants.
   灌溉系统负责将水输送到植物上。
3. 3. The irrigation process helps tomaintain soil moisture and prevents drought.
   灌溉过程有助于保持土壤湿度，防止干旱。