短語(yǔ)詞組短語(yǔ)acoustic diversity attenuation 聲波差異衰減Acoustic Amplitude Attenuation 聲幅衰減acoustic relaxation attenuation 聲弛豫衰減acoustic wave attenuation 聲波衰減acoustic c attenuation constant 聲衰減常數(shù)leak out acoustic attenuation 漏出聲衰減acoustic attenuation co tant 聲衰減常數(shù)acoustic attenuation constant 聲衰減常數(shù)acoustic attenuation characteristics 消聲特性 返回 acoustic attenuation