read-back signal

例句：

1. 1. The deviceuses a read-back signal to transmitdata over long distances.
   该设备使用读回信号在长距离上传输数据。
2. 2. In the field of communication, read-back signals are crucial for maintaining networkstability.
   在通信领域，读回信号对于保持网络稳定性至关重要。
3. 3. Theengineers were able tosuccessfully read-back the lostsignal from the damaged antenna.
   工程师们成功地从损坏的天线中读取到了丢失的信号。