n.本征频率，特征频率

eigenfrequency spectrum → 固有频谱
eigenfrequency of vibration → 振荡本征频率
eigenfrequency of mhd → mhd特征频率
equal eigenfrequency → 重频
the eigenfrequency → 本征频率
loop eigenfrequency → 本征频率
close eigenfrequency → 密频
nonlinear eigenfrequency shif → 非线性本征频移
eigenfrequency of shock wave → 激波特征频率