narrow-band reception

例句：

1. 1.In the old days, people used to rely on narrow-band reception for communication.
   在旧时代，人们依靠窄带接收进行通信。
2. 2. The new technology uses narrow-band reception to improve signal strength.
   新技术使用窄带接收来提高信号强度。
3. 3.The engineers were able to use narrow-band reception to detect the incoming signals.
   工程师们能够使用窄带接收来检测到传入的信号。