Empirical Formulas of Sound Absorption Coefficients and Spectrums of
EmpiricalFormulasofSoundAbsorptionCoefficientsandSpectrumsof，张新安，，Anewtheoryisputforwardthatthesoundabsorptionprincipleofperforatedpanelissimilartoimperforatedplate.Soundisabsorbedbythevibrationofpanel,whilenotthehol
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