fiber’s vibration maximum tension compress modulussound absorption coefficient f
TheFiberVibrationSoundAbsorptionTheory，ZhangXin’an，，Fibrousmaterialshadbeenusedassoundabsorptionmaterialsforoveronecentury.ThecurrentsoundabsorptiontheoryisstilltheRayleighmodel.Butthismodelisjustthetheo
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