Apply to protect electrical relay, POWER, amplifier and so on.

用于继电器、电源、放大器等电器元件保护。

youdao

Control center through the at instruction set through the communication module connected through the electrical relay control to ensure that mobile phone users to remote control robot camel.

通过控制中心通过AT指令集连接通讯模块，通过继电器控制电机，保证用户能够通过手机远程遥控骆驼机器人。程序包里面有骆驼机器人的源代码和AT指令集。

youdao

The church was crowded, so electrical machinery was used to relay the liturgy out to the people.

教堂里很拥挤， 所以就用电机设备把礼拜仪式向外面的人转播。

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Entergy told New Orleans City Council members that the company still doesn't know why the device triggered, but the relay has been removed, the dome's electrical system is ready to go and steps will be taken to ensure a malfunction doesn't happen again.

CNN: STORY HIGHLIGHTS

That led the relay, a kind of sensing device, to incorrectly conclude there was an electrical problem and tell a nearby electrical switch to isolate the perceived problem, reducing the flow of power to the Superdome during the game's third quarter.

WSJ: Device Setting Triggered Super Bowl Outage