The acoustical and communications engineer is concerned with the generation, transmission and absorption of sound.
声学和通信工程人员研究的问题涉及声音的产生、传播和吸收等。
Surface acoustic wave touch screens rely on the absorption of sound waves to detect a touch so a finger or gloved finger will work.
表面声波触摸屏凭借吸收声波来判断触摸反应，所以带不带手套对它的工作没有任何影响。
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。
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 sound absorption coefficiet of osb was tested by the stationary wave method. the results showed that the osb had good sound absorption property compared with brick and concrete.
采用驻波管法测定定向结构刨花板的吸声系数，分析比较了定向结构刨花板与砖、混凝土吸声性能的差异。结果表明，定向结构刨花板具有良好的吸声性能。
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。
This paper derives the best range of thickness of the materials by analyzing the main factors influencing the sound absorption properties of porous metal materials.
通过分析影响多孔金属材料吸声性能的主要因素，推导出材料的最佳厚度范围；
Sound absorption materials is always used in controlling reverberation time in the acoustical design of studios.
对演播厅混响时间的控制，在声学设计上往往通过安装吸声材料来实现。
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。
In order to make travelers as comfortable as possible, the train utilizes shock absorption, as well as sound insulation to minimize the sounds of standard operation.
为了使旅客尽可能舒适，列车采用吸音、隔声等技术使标准操作的声音最小化。
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。
Now most sound absorption layers are impedance transition constructs, which have been used widely, but their thickness is limit and cannot meet the need of absorbing sound at low frequency.
现代应用较多的吸声层大部分是阻抗过渡式结构，但是厚度有限，无法满足低频吸声的要求。
Sound absorption and insulation is the acoustical characteristic of material. Measurement of sound absorption and insulation has an important significance in noise control and acoustical design.
吸声与隔声是材料的声学特性，吸声与隔声测量对噪声控制与声学设计具有重要意义。
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。
In the measurement of sound absorption coefficient in random incidence and determination of sound power levels of noise sources, the reverberation room is used very extensively.
混响室是声学专业的实验室用房，它在测量声波无规入射时材料的吸声系数和测量噪声源的声功率级中得到了广泛应用。
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。
It found that the graphite changed the density of the coating, and improved the sound-absorption coefficient of the coating.
试验结果表明，石墨改变了涂层的密度，提高了涂层的吸声系数。
A three-dimensional transfer matrix model was presented to simulate the sound absorption coefficients of the graded polyurethanes based on relation of stress and strain of polymers.
根据高分子材料中三维应力应变关系建立了三维传递矩阵数学模型，模拟梯度聚氨酯在不同入射角下的吸声性能。
The sound absorption properties of foamed aluminum are introduced and the effects of thickness, porosity, compression ratio, air cavity depths on sound absorption property are studied.
介绍了泡沫铝的吸声特性，研究了泡沫铝的厚度、孔隙率、压缩率、空腔对其吸声性能的影响。
The changes of the transfer functions of reflected sound waves were analysed in the case of absorption structure with ribs.
文中还分析了有肋吸声结构声反射传递函数的变化。
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。
This article analyses the principle of detecting circuit in TV receiver. and explains theoretically the correct absorption of first sound IF so as to keep the sound from interfering the picture.
本文分析了电视机检波电路的原理，从理论上说明了伴音第一中频应吸收的强度，以使图象不受伴音干扰。
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。
The paper chooses the appropriate muffler, and experiments with the capability of sound absorption material, and designs the dustproof project.
本文通过选择合适的消声器以及吸声材料实验和防尘方案的设计。
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。
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。
Attenuation was paid to the study on the sound absorption mechanism of water-soluble polymer during dissolving.
研究了水溶性高分子涂料在其溶解过程中的吸声机理。
The aim is to study the effects of dynamic mechanics properties and geometrical parameters of each layer material on the sound absorption properties of the multilayered polymer composites.
研究了多层高分子复合结构在斜入射声波作用下，各层材料动态力学性能参数和几何参数变化对其吸声性能的影响规律。
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。
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。
应用推荐