n.窄频带(狭频带)
Acoustic cavity is a good narrowband absorber. 声腔是很好的窄带吸收器。
The men were using narrowband and broadband woman. 男的用窄带，女的用宽带。
The QRD-LSL filter can be used to suppress narrowband interference. 在此基础上,设计了线性QRD-LSL滤波器用来抑制窄带干扰。
The radio spectrum used in narrowband Personal Communications Services (PCS). 用于窄带个人通信业务（PCS）的无线频谱。
Narrowband filter A filter that transmits light of a specific wave length. See Broadband filter. 窄波段滤片只让某一波段的光波透过的滤片。参阅阔波段滤片。
