dipping switch

例句：

1. 3. drip irrigation switch例句：1. The dipping switch is the first thing you see when you turn on your sprinkler system.
   当你打开喷灌系统时，你首先看到的是滴水开关。
2. 2.The farmer used a dipping switch to control the flow of water to his crops.
   农民使用滴水开关来控制水流向他的庄稼。
3. 3. The engineer designed a new dipping switch that would reduce water waste and improve efficiency.
   工程师设计了一种新的滴水开关，以减少浪费并提高效率。