通频带

例句：

1. 1. The radio transmits signals over a wide frequency band.
   这个无线电通过一个宽频率带传输信号。
2. 2. The engineer measured the bandwidth of the transmission line.
   工程师测量了传输线路的带宽。
3. 3. The new device has a wider bandwidth than its predecessor.
   这款新设备比它的前代产品有更宽的带宽。