1) Sound Absorption Ability
吸声能力
2) acoustic absorptivity
吸声系数;吸声能力，吸声率
3) 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。
3.
The results indicated that the type,amount and hollow structure of filler had different effects on the sound absorption of coatings.
研究了聚硅氧烷改性聚氨酯涂层的吸声性能,研究结果表明,填料种类、结构、含量以及空腔结构会对涂层体系的吸声性能产生不同程度的影响。
4) sound absorption performance
吸声性能
1.
Study on sound absorption performance of FeCrAl fibrous porous materials gradient structure
FeCrAl纤维多孔材料梯度结构吸声性能的研究
2.
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。
3.
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。
5) sound absorbing performance
吸声性能
1.
Application of sound absorbing performance for casting porous aluminum alloy;
铸造多孔铝的吸声性能与应用
2.
It analyses the test result of the effluence of sound absorbing performance with different thickness, pore, water absorbing and joint sealing, then gives some suggestions on product choice, and the main application range.
介绍了吸声泡沫玻璃的主要物理力学性能，对不同厚度、空腔、吸水和拼缝情况对其吸声性能的影响的测试结果进行了分析，对产品的选用提出了建议，并介绍了其主要应用范围。
6) sound absorption characteristics
吸声性能
1.
On the optimization of sound absorption characteristics of porous sintered fibrous metal
烧结金属纤维材料吸声性能优化研究
2.
New material foamed aluminum has better characteristics not only sound absorption characteristics but also better damp,noise isolation, rejection of heat,light weight,electromagnetic shielding and so on,so it is very appropriatly to reduce noise using foamed aluminum in mine and noise can also be controlled in mine.
同时指出由于新型材料泡沫铝不但具有优良的吸声性能,而且还具有优良的阻尼、隔声、散热、轻质、电磁屏蔽、吸收冲击能量等性能,因此可应用泡沫铝作为矿井吸声材料来减小矿井的噪声,以实现对矿井噪声的控制。
3.
The influences of aggregate size and gradation,water-cement ratio,cement and admixture content on the sound absorption characteristics and air-flow resistivity were investigated.
研究不同的陶粒粒径及级配,水灰比,水泥掺量以及掺和料对材料吸声性能和流阻的影响。
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。
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