wide-range frequency meter 宽带频率计

frequency range [电子] [通信] 频率范围 ; 频率响应 ; 频响范围

mid-range frequency 中频

audible frequency range 听频范围

frequency response range [电子] [通信] 频率响应范围 ; 频响范围

operating frequency range 工作频率范围

rated frequency range 额定频率范围 ; 额定输入频率范围

range-frequency property 幅频特性

Input frequency range 输入频率范围 ; 频率范围 ; 输入频率

wide range frequency meter 宽量程频率计