narrow-band channel

... 窄(频)带放大器 narrow-band amplifier 窄频带通道 narrow-band channel 窄频带通信系统 narrow-band communication syste…

... narrow-band axis 窄通带轴，狭通带轴 narrow-band channel 窄带信道 narrow-band crystal filter 窄 (频 )带晶体滤波器 ...

... narrow band subliminal channel1. 窄带阈下信道 narrow-band channel1. 窄频带信道 narrow band rf channel1. 狭带射频道 ...