[通信] 滤波器的标称带宽 nominal bandwidth: 标称带宽adjustable bandwidth filter: 频带可调滤波器constant bandwidth filter: 恒带宽滤波器; 恒定带宽滤波器octave(bandwidth)filter: 倍频程(宽带)滤波器proportional bandwidth filter: 比例带宽滤波器下载手机词典可随时随地查词查翻译