unifrequency

例句：

1. 1. The signal is emitted from a single frequency source.
   信号从单一频率源发射。
2. 2. This device operates at a unique frequency that is not easily detectable by others.
   这台设备以一个独特的频率运行，不易被其他人检测到。
3. 3. The radio waves are transmitted through a unifrequency channel.
   无线电波通过一个单一的频率通道传输。