low-voltage relay

例句：

1. 1.The low-voltage relay is used to control the flow of electricity in homes and businesses.
   低压继电器用于控制家庭和企业的电力流动。
2. 2. The low-voltage relay is an essential component of electrical systems.
   低压继电器是电气系统的一个必要组成部分。
3. 3. The low-voltage relay was designed to prevent overheating during high-power operations.
   低压继电器被设计成在高功率操作期间防止过热。