the eigenfrequency本征频率
eigenfrequency spectrum固有频谱
close eigenfrequency密频
equal eigenfrequency重频
loop eigenfrequency本征频率
nonlinear eigenfrequency shif非线性本征频移
eigenfrequency of vibration振荡本征频率
eigenfrequency of mhdmhd特征频率
eigenfrequency of shock wave激波特征频率
N（名词） a resonance frequency of a system 本征频率 [physics]