frequency lock锁频frequencyn.频繁；频率frequency division multiplex communication频分多路传输通信frequency and amplitude stabilized circuit稳频稳幅电路frequency division color television system分频式彩色电视制Frequency Agile Multiple Emitter Simulator灵活频率多重发射模拟器Frequency-domain Analysis of ECG Signals心电图信号的频域分析Frequency discriminator frequency symmetry鉴频器频率对称性frequency response function coupled method频响函数合成Frequency domain differential demodulation频域差分解调frequency modulation transistor oscillator调频晶体管振荡器frequency-modulated feedback demodulator调频反馈解调器