enclosed relay

例句：

1. 1. The enclosedrelay is designed to provide a secure connection between two circuits.
   封闭式继电器设计用于在两个电路之间提供安全的连接。
2. 2.The enclosed relay is used in industrial automation systems to control the flow of electrical signals.
   封闭式继电器被用于工业自动化系统中，以控制电气信号的流动。
3. 3. In this case, the enclosed relay was responsible for detecting and isolating faults in the power system.
   在这种情况下，封闭式继电器负责检测和隔离电力系统中的故障。