模拟: imitate; copy频率: frequency; rate频率变换器: frequency transformer; frequency translator电压 频率变换器: voltage frequency transducer类比-频率变换器: analog-to-frequency converter变频器频率变换器: frequency transformer参量频率变换器: parametric frequency converter电压频率变换器: vfc voltage to frequency converter; voltage frequency converter; voltage-to-frequency converter发射频率变换器: tra mitting frequency converter; transmitting frequency converter频率变换器电路: converter circuit数码频率变换器: number to frequency converter水银频率变换器: mercury frequency changer整流子频率变换器: commutator frequency changer频率变换器,周波变换器: frequency converter电压脉冲重复频率变换器: voltage to pulse rate converter; voltage-to-pulse rate converter功率变换器: power converter; power inverter; power transformer频率变换: channel rotation; frequency change; frequency conversion; frequency tra lation; frequency transformation; frequency translation; frequency transposition; frogging频率变换,变频: frequency translation大功率变换器: power converter双斜率变换器: dual slope converter参数频率变换: parametric frequency conversion工作频率变换: operating frequency change量子频率变换: quantum frequency conversion频率变换电路: frequency-conversion circuit频率变换调制: frequency shift keying (fsk)