special purpose relay

例句：

1. 1.The special purpose relay is used to control the flow of power in a specific circuit.
   专用目的继电器用于控制特定电路中的电力流动。
2. 2. In this project, we need to use a special purpose relay to ensure the safe operation of the system.
   在这个项目中，我们需要使用一个专用目的继电器来确保系统的安全可靠运行。
3. 3. The special purpose relay is designed to handle high voltage and high current signals.
   专用目的继电器设计用来处理高电压和高电流信号。