noise absorption materials 吸声材料 收藏 absorbing sound materials 吸声材料 收藏 SOUND INSULATION MATERIALS 隔音材料; 隔声材料 收藏 .
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sound-absorbing materials 吸音物料
Sound absorbing materials 吸声材料
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。
It is an important way with the sound-absorbing materials to improve the sound pollution.
利用吸声材料来吸声降噪是治理噪声污染的重要途径之一。
Therefore, to choose those seen in the decoration noise, sound-absorbing effect good decoration materials.
这看起来不错，却不能起到隔音的效果。
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