4-level frequency modulation (4-level FM)
AC frequency modulation for motor speed regulation
amplitude and frequency modulation
balanced frequency modulation detector
coefficient of frequency modulation
direct frequency modulation
frequency modulation
调频
频率
频率调制
频率灯
调频频率调制
频率调变系数
窄带调频
调频干扰
调频作用
一次调频
变频调速
高压直流调频
调频率
档
频调
变频
frequency modulation benefit
frequency modulation detecting threshold
High frequency modulation
high frequency wave trapper
hysteresis time of primary frequency modulation response
Incidence wave frequency
Intrawave Frequency Modulation
Laser frequency modulation
leaser frequency modulation absorption spectroscopy
Linear Frequency Modulation Signal