control signal box

例句：

1. 1. The engineer needs to install the control signal box before starting the machine.
   工程师需要在启动机器之前安装控制信号箱。
2. 2.The control signal box is responsible for monitoring and controlling the system's operation.
   控制信号箱负责监控和控制系统的运行。
3. 3. The technician must ensure that the control signal box is properly connected and tested before the system is turned on.
   技术人员必须确保控制信号箱正确连接并测试后，系统才能开启。