谐波积谱
harmonic product spectrum
低频感应谐波法
low frequency inductive harmonic method
多次波谐波分量
multiple wave composition
非线性谐波法
nonlinear harmonic method
高次谐波谐振
high order harmonic resonance
光学二次谐波法
Optical second-harmonic generation
频谱谐波技术
spectral harmonic technology
三波谐波摩擦传动
Three-wave Harmonic Friction Drive
三次谐波积分法
third-har-monic integration method
数字谐波法
numerical harmonics analysis method