homing transponder

例句：

1. 1.The homing transponder is used to track the location of a lost aircraft.
   定轨应答器用于追踪失事飞机的位置。
2. 2. The device's ability to locate and communicate with other devices is its primary function.
   该设备的主要功能是定位和与其他设备通信。
3. 3. In order to maintain communication, the transponder must be programmed to respond to signals from nearby devices.
   为了保持通信，应答器必须被编程以响应附近设备的信号。