变温速率可调 Ramping Rate Adjustale

频率调变 frequency modulation ; modulation frequency FM

最高调变频率 maximum modulating frequency

自动频率调整变压器 automatic frequency control transformer ; [电子] AFC transformer

可变比率调整器 variable ratio regulator

频率调变指数 frequency modulation index

调变率 modulation rate ; amount of modulation ; index modulation ; rate modulation

变斜率脉冲调制 variable-slope pulse modulation

频率变换调制 frequency shift keying

二进制频率变换调制 binary frequency-shift keying