frequency plan频率计划
frequencyn.频繁;频率
frequency - offset estimation频率偏移估计
frequency-multiplier klystron倍频速调管
frequency modulation oscillator调频振荡器
Frequency Control Working Group频率控制工作组
frequency-shift track circuit移频轨道电路
frequency convertible governors变频器
frequency-converting governor变频器
frequency multiplication factor倍频因子