subswitch

例句：

1. 2.
   电路中的
2. 3.
   计算机系统中的
3. 1. The subswitch is responsible for controlling the speed of the motor.
   子开关负责控制电机的速度。
4. 2. The subswitch was designed to improve the reliability of the system.
   子开关的设计目的是为了提高系统的可靠性。
5. 3. During startup, the subswitch must be activated before the main switch.
   在启动过程中，子开关必须在主开关激活之前被激活。