Music classrooms need to satisfy acoustical requirements of sound insulation and sound absorption.
音乐教室要同时满足隔音和吸音的声学要求。
The content of architectural acoustics usually includes noise control and hall timbre, and sound absorption is its main technical measure.
建筑声学设计的内容通常包括噪声控制与厅堂音质两方面的内容。而吸声结构则是它的主要技术手段。
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。
The results show that the appropriate combination of sound absorption materials and sound absorption structures can improve the sound absorption effect, and the absorption broadband is widened.
结果表明，吸声材料与吸声结构的有机结合显著提高了结构的吸声效果，拓宽了吸声频带宽度。
Centrifugal glass cotton to hf have better sound absorption performance.
离心玻璃棉对声音中高频有较好的吸声性能。
To increase the thickness of material could improve the sound absorption property.
通过增加材料的厚度也可使吸声性能有较大提高。
Study on sound absorption and insulation of gypsum board structure and its application;
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。
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。
An adaptive control approach applied to practical active sound absorption systems is presented.
研究了实际系统中有源声吸收自适应控制方案。
Its good characteristics include low cost high durability and good property of sound absorption.
它具有成本低、耐久性高、吸声性能好的特点。
The part of gradient coil near shell forms chamfer Angle to lay more sound absorption material.
所述梯度线圈靠近外壳的部分形成倒角，以放入更多的吸声材料。
Its good characteristics include low cost, high durability and good property of sound absorption.
它具有成本低、耐久性高、吸声性能好的特点。
This is the ability of the material to absorb sound and is called its sound absorption coefficient.
它是材料吸收声波的能力，即所谓的吸声率。
Methods Use a standing wave tube to measure the sound absorption coefficient of many kinds of grain.
采用驻波管法测量了多种粮食的吸声系数。
The Rayleigh Model is used to prove that the alloy honeycomb monolith has sound absorption performance.
在理论上用瑞利吸声模型证明了合金蜂窝体的吸声作用。
Sound absorption performance is superior to the sound absorption performance of several kinds of timber .
吸声性能优于几种木材的吸声性能。
The study about sound absorption properties of product made of synthetic fiber is discussed in this paper.
本文介绍了目前关于合成纤维及其制品声学特性的研究状况。
The sound absorption guiding cone is made of foam material, which can reduce the secondary noise and guide the flow.
吸声导流锥是利用泡沫塑料作吸声体，降低二次噪声，并有导流作用。
When the non-homogenous layer is divided, the sound absorption performance of the structures is increased in low frequency.
结果表明，对非均匀层进行分层后，结构在低频时的吸声性能有所提高。
It is very pivotal to choose and dispose the sound absorption material in the architecture such as odeums and cinemas, etc.
在影剧院、音乐厅等建筑中，吸声材料的选择与布置是十分关键的。
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。
Foam glass has many fine properties as follows:fire proof, water proof, heat keeping and insulation, sound absorption and so on.
前言：泡沫玻璃具有防火、防水、保温隔热、 吸声等良好性能。
To a certain extent, the finer fiber fineness, the better sound absorption, and doesn't effect obviously on the sound insulation.
纤维细度变细，可在一定程度上提高材料吸声效果，但对材料的隔声量影响不明显。
In applied acoustics field, the sound absorption measurement of an acoustic material and structure is always an important and basic task.
在应用声学领域，声学材料与结构的吸声测量始终是一项重要的工作。
Adding a back lining at one side of the porous metal material is an effective and workable way to improve its sound absorption properties.
而在多孔金属材料一侧添加背衬是一种提高吸声性能的有效可行的方法。
The laboratory is aimed at measuring the sound absorption and insulation properties of small test pieces in the normal incidence condition.
本实验室用于测量小试件法向入射条件下的吸声及隔声性能。
The magnetic resonance imaging device effectively reduces the noise by setting sound absorption material and is easily implemented with lower cost.
本发明提供的磁共振成像设备，通过吸声材料的设置，有效地降低了噪声，而且成本低，易于实现。
The results show that the sound absorption property of gradual porous aluminium alloy is improved by about 55% compared with normal porous aluminium alloy.
结果表明：梯度孔径多孔铝合金的吸声性能较现有多孔铝合金提高约55%，其宽频吸声性能优异。
When the porosity and pore diameter reduced, the sound absorption curve moved to the low frequency zone and the frequency bandwidth increased at the same time.
随着孔隙率、孔径的减小，多孔铝的共振吸声系数有所下降，吸声频谱曲线向低频方向移动，且频带宽度展宽。
We applied the finite element method to study the variation of sound absorption structure and performance of rubber material under variable hydraulic pressure.
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。
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