frequencyn.频繁;频率
frequency-domain reflectometer频域反射器
frequency modulated oscillations档振荡
frequency regulation arrangement频率调节装置
frequency-modulation reception调频接收
frequency and response functions频响函数
frequency equalization of speech语音频率均衡
frequency-stepped chirp signal线性调频步进信号
frequency modulation transmitter调频发射机
Frequency Agile Signal Simulator频率捷变信号模拟装置