便携式盒式调频调幅收录机  portable cassette type FM-AM recorder-receiver

调频调峰  frequency and peakload modulation

调频调幅  frequency and amplitude modulation

调频调幅变换器  frequency modulationamplitude modulation converter

调频调幅调制表  FMAM modulation meter

调频-调幅模型  AM-FM modulation model

调频调功  pulse frequency modulation

调频调宽  modulating frequency and width; Variable-frequency Variable-wide

调频调相  frequency phasic modulation

调频-调相  FM-PM Frequency Modulation – Phase Modulation

调频—调相  frequency modulation-phase modulation

调频调谐器  frequency modulation tuner

调频调谐试验  tuning frequency modulation

调频调压  variable frequency and voltage regulating; frequency and voltage regulation

调频调载  automatic frequency load regulation; frequency and power adjustment; frequency and load control

调频调栅振荡器  Armstrong oscillator; tuned-grid tuned-plate oscillator

调频调制盘  FM reticle

调频频率  modulation frequency

调频频率调制  frequency modulation