通道命令字

例句：

1. 1. The engineer used the channel command word to communicate with the robot.
   工程师使用通道命令词与机器人进行沟通。
2. 2. The team leader issued a channel command word to clear the area.
   团队领导发出了一个通道命令词来清理区域。
3. 3. The pilot used the channel command word to guide the plane through the fog.
   飞行员使用通道命令词来引导飞机穿过雾。