1)  absorbing ceiling
吸声天花板
2)  acoustical ceiling
吸声天花板
3)  sound absorption
吸声
1.
Investigation of the sound absorption performance of multilayer non-homogenous wave-guide;
多层非均匀波导吸声特性研究
2.
Broadband resonance sound absorption and it′s principle for low frequency;
低频宽带共振吸声结构与原理
3.
Study on the properties of air permeability,luster and sound absorption of milling wool fabric by washing;
洗涤缩绒对羊毛织物透气、光泽和吸声性能的影响
4)  acoustic absorption
吸声
1.
The noise-deadening property was also analyzed and pointed that it was a new composite material which has much high performance such as excellent noise-deadening and acoustic absorption etc.
选择聚丙烯为纤维原料采用纺丝成网法制成吸声非织造布,以铜、铁粉末为主要隔声材料采用挤出成型工艺制成隔声片材,经化学粘合复合工艺研制出非织造降噪复合材料。
2.
The results show that in the frequency range of 125~1 600 Hz, the acoustic absorption performance improved, but the soundproof property improved at the low frequency and decreased beyond 500 Hz.
测试结果表明,在声频125～1600Hz的范围内,极化后的吸声性能增加,而隔声量在低频增加,在中高频(500Hz以上)降低。
5)  sound-absorbing
吸声
6)  sound absorption
吸声性能
1.
To promote the sound absorption performance at different frequencies,gradual porous aluminium alloy was processed via pressure infiltration.
为了克服现有多孔铝合金的吸声性能在不同频率下存在较大波动的问题,采用渗流法制备了可控孔径的梯度孔径多孔铝合金,分析了孔径梯度、试样厚度对吸声性能的影响。
2.
Stand wave tube equipment is a special equipment for testing sound absorption performance of different material.
驻波管测试仪是用于测量材料吸声性能的专用仪器,利用该仪器对金属橡胶吸声性能进行测量,使测量结果满足金属橡胶吸声性能实验研究的精度要求,且便于材料实验结果的误差分析,需对驻波管测试仪进行检测和调试。
7)  sound absorption performance
吸声性能
1.
The silicone rubber coating material was synthesized,and the sound absorption performance of the material underwater was studied,and the relationship between the sound absorption performance and the molecule structure of the material was discussed.
合成了硅橡胶基吸声涂层材料,研究了涂层材料在水下的吸声性能,探讨了该涂层的微孔及分子结构与吸声性能之间的关系。
2.
The results show that the variation of static hydraulic pressure does not significantly affect the deformation and sound absorption performance of the structure with compound cavum.
应用有限元方法计算静水压力变化下几种橡胶吸声结构的形变和吸声性能。
3.
Finally, it sums up the applications of metal foams sound absorption performance and provides reference for further promo.
在介绍多种吸声材料的特点以及泡沫金属作为吸声材料优越性的同时,重点阐述泡沫金属的结构特征、吸声机理和吸声性能特点,总结泡沫金属吸声性能的应用,为进一步推动泡沫金属声学性能的研究和应用提供参考。
8)  sound absorption coefficient
吸声系数
1.
The sound absorption coefficient of the material was tested by standing wave tube method.
采用驻波管法测试材料的吸声系数。
2.
The effect of thickness and density of the melamine foam on the sound absorption coefficient was analyzed by impedance experiment.
结果表明:材料厚度对其吸声性能的影响较大,密度对吸声性能只在频率400 Hz以下略有影响;三聚氰胺泡沫塑料较纤维材料低频(<1 kHz)吸声系数低,中高频(≥1 kHz)系数高;与聚氨酯泡沫塑料相比,低频(<1 kHz)吸声性能相当,中高频(≥1 kHz)吸声性能较佳。
3.
The principle of determination of sound absorption coefficient of materials by transfer function method is introduced.
介绍了在阻抗管中采用传递函数法测量材料吸声系数的原理,详细介绍了使用双传声器进行测量的方法,指出了测试的频率范围取决于阻抗管的管径大小和传声器布置的位置。
9)  sound absorption model
吸声模型
1.
According to the characters of porous metals,a new effective bulk modulus formula with simpler expression was obtained by considering the heat exchange between the metallic skeleton and air in pore on the basis of phenomenological Biot-Allard model,therefore an extended sound absorption model was put forward.
根据金属骨架多孔材料的特点,在Biot-Allard刚性骨架多孔材料内流吸声模型的基础上,考虑金属的热导特性,推导出一种新的、形式较简单的有效体积模量表达式,从而得到了一种扩展的吸声模型。
10)  sound absorption and noise reduction
吸声降噪
1.
The article presents the concept,process,strongpoint,performance and development & research status of ceramic foam abroad and at home,mainly describing the application of ceramic foam in wastewater treatment,exhaust gas treatment and sound absorption and noise reduction.
本文介绍了泡沫陶瓷的概念、制备方法、优点、性能以及目前国内外的研究发展状况,重点讲述了泡沫陶瓷在废水处理、废气处理、吸声降噪领域的应用,并对泡沫陶瓷在环境中的应用前景和发展趋势作了预测。
补充资料：吸声
分子式：
CAS号：

性质：声波通过某种介质或射到某介质表面时，声能减少或转换为其他能量的过程称为吸声。表征材料吸声性能的参数是吸声系数(acoustical absorption coefficient)，即被材料吸收的声能与入射声能的比值。吸声系数大于0.2的材料称为吸声材料(acoustical absorption materials)。常用的吸声材料有玻璃棉、矿渣棉、卡普隆纤维、棉麻等植物纤维、泡沫微孔吸声砖等。

说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条