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。

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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》

The more low noise control, is the sound-absorbing effect with the censored box.

更低的噪音控制，就是加装具有吸音效果的消音箱。

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The walls were finished with sound-absorbing plaster, and the ceiling is made of cypress stained a rich brown hue.

WSJ: The $40 Million Party Pad

As a sound-absorbing pad atop the device vibrates to ambient noise, causing the zinc oxide wires to compress and release.

FORBES: Written by Bryan Nelson

The answer to creating an effective multi-purpose venue is found in flexible components like orchestra shells, and adjustable sound-absorbing materiel deployed when needed and stored when not, creating different sound boxes as appropriate.

FORBES: Connect