The data he compiled yielded a mathematical formula for the relationship between a room's echo duration, its quantity and quality of sound-absorbing materials, and its spatial volume.
他收集的数据得出了一个关于房间回声持续时间、吸音材料的数量和质量以及空间体积之间关系的数学公式。
2
There is a kind of rough wall surface, which is said to be sound-absorbing.
有一种墙面是麻的，据说可以吸音。
《新英汉大辞典》
3
The more low noise control, is the sound-absorbing effect with the censored box.