青云翻译

In order to reduce harmonic pollution, need to filter out high-order harmonic filter design

In order to reduce the harmonic pollution to design filter to filter high order harmonic generation

In order to reduce the overtone pollution, needs to design the filter to filter out the higher harmonic

In order to reduce pollution, there is a need to design filters harmonic filter harmonics to high time

In order to reduce the harmonic pollution to design filter to filter high order harmonic generation