acoustical attenuation

• 声衰减

acoustical attenuation的用法和样例：

例句

1. Prediction of TL of a simple expansion chamber demonstrates that the effect of thermo-viscosity improves the sound attenuation somewhat at the pass frequencies.
   对于简单膨胀腔，传递损失的预测结果表明，热粘性效应使通过频率处的声衰减有所改善。