electromechanical relay

例句：

1. 1. The electrical relay is used to switch power from one circuit to another.
   电气继电器用于将电力从一个电路切换到另一个电路。
2. 2. The electronic relay is more precise and can be used in high-speed applications.
   电子继电器更加精确，可以在高速应用中使用。
3. 3. The electromechanical relay is a traditional type of relay that uses mechanical movement to control the flowof electricity.
   电机械继电器是一种传统的继电器类型，它使用机械运动来控制电流的流动。