This dissertation does deep research in sound absorption performance of MR from theory and experiment aspects and indicates the sound absorption and noise reduction property of MR.
本文的研究揭示了金属橡胶材料的吸声降噪性能，对金属橡胶材料吸声特性进行了深入的理论和试验研究。
The result shows that average absorption coefficient and noise reduction coefficient separately equal to0.58and0.60 and fine property of sound absorption at middle-low frequency.
结果表明材料的平均吸声系数和降噪系数分别达0。58和0。60，且材料的中低频吸声性能优良。
In the noise control, it can be used in sound absorption and noise reduction in the room.
在噪声控制中用于室内吸声降噪以及通风空调系统和动力设备排气管中的管道消声等。
With the acoustic paper or sound proof cotton , the punch ceiling increase absorption capacity of whole closed space and the noise reduction can alter the impact .
冲孔天花板背面加入隔音纸或者隔音棉，有助于增加整个密闭空间的总吸收量，降低噪音给我们带来的影响。
According to the function mechanisms, polymeric noise reduction composites were classified as vibration damping, sound absorption and sound insulation materials.
降噪材料按降噪机理可分为阻尼减振材料、吸声材料和隔声材料。
Comfort: Our wood fiber interior trim products have more excellent NVH features, such as sound absorption, noise reduction.
舒适：木纤维内饰产品有着更好的吸音、降噪等卓越的NVH功能。
Comfort: Our wood fiber interior trim products have more excellent NVH features, such as sound absorption, noise reduction.
舒适：木纤维内饰产品有着更好的吸音、降噪等卓越的NVH功能。
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