吸声      sound absorption(282) acoustic absorption(20) sound absorbing(49) sound-absorption(12) sound absorbent(14) noise deadening(0) acoustical absorption(4) absorb sound(3) sound absorb(0)   sound absorption      The test band recommended by us for measuring random-incidence sound absorption coefficient a_s of the acoustic absorbent is 1/3octave band width of the central frequency 125～4000Hz.      测量材料无规入射吸声系数a_s时,推荐使用的测试频段为中心频率125～4000Hz的1/3倍频程带宽。 短句来源      the proportion of wheat straw to polyurethane in the composite has bigger influence on the sound absorption coefficient in the sound wave frequency of 250- 4 000Hz.      在声波频率为250～4 000Hz区域内,麦秸和聚氨酯的比例对麦秸/聚氨酯复合人造板的吸声系数影响较大。 短句来源      Single value rating and classification methods of the sound absorption material──A brief interpretation of first ISO/CD 11654      材料吸声的单值评价和分级方法──ISO/CD11654简介 短句来源      In this paper, real-time measurement systems of sound absorption coefficient and sound transmission loss based on impedance tube is developed by virtual instruments technique and LabVIEW.      本文基于虚拟仪器技术与LabVIEW测控软件开发环境开发了传递函数法阻抗管吸声系数实时测量系统与隔声实时测量系统,解决了系统频响干扰消除。 短句来源      Study on the sound absorption mechanism in gradient water-soluble polymer solution      水溶性高分子梯度溶液吸声机理的研究 短句来源 更多          acoustic absorption      Study on the Relationship Between Underwater Acoustic Absorption and Dynamic Mechanical Property of Polymer Materials      聚合物的水声吸声与动态力学性能关系的研究 短句来源      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。 短句来源      Effect of electric conduction phase on acoustic absorption property of the piezoelectric composite      导电相对压电复合材料吸声性能的影响 短句来源      Studies on the Underwater Acoustic Absorption Property of Epoxy Resins and its Gradient Layered Structure Materials      环氧及其梯度结构的水声吸声性能 短句来源      An analysis of the behavior of sound propagation in the polymer material was performed. The relationship between the underwater acoustic absorption property and acoustic parameters such as sound speed,sound attenuation coefficient was established. To determine attenuation coefficient and sound speed,the single relaxation time model was used.      以声波在高分子介质中的传播理论为依据,推导出了材料的水下吸声性能与其声学参数如声速和声衰减系数之间的关系式,在此基础上,以描述高分子材料粘弹行为的三元模型为出发点,推导出了材料的水声吸声性能与材料的动态力学性能参数包括损耗因子、松弛前的剪切模量、松弛后的剪切模量以及材料的密度和厚度之间的关系式。 短句来源 更多          sound absorbing      Research on Foamed PVC/EPR/Rockwool Compound Sound Absorbing Material      PVC/EPR/岩棉发泡复合材料吸声性能的研究 短句来源      Influence of Pore Structures on the Underwater Sound Absorbing Properties of Open pore Foamed Aluminum      孔结构对通孔泡沫铝水声吸声性能的影响 短句来源      Influence of Compressive Ratio and Density on Sound Absorbing Property of Foamed Aluminum      压缩率和密度对泡沫铝吸声性能的影响 短句来源      Application of sound absorbing performance for casting porous aluminum alloy      铸造多孔铝的吸声性能与应用 短句来源      A Study of the Acoustical Properties of Compound Impedance in Sound Absorbing Structure      阻抗复合吸声结构的理论与声学特性研究 短句来源 更多          sound-absorption      RSC at various densities had a sound-absorption coefficient of 0.5 to 0.9 as to sound frequency of 1000 to 2000Hz due to the quantity pores in and between rice straws at a low compression.      在本研究试验中发现,几种不同密度的稻草秸杆板在1000Hz～2000Hz频率范围内,其吸声系数相对都比较大,大部分在0.5以上,个别试件的吸声系数达到了0.9以上。 短句来源      Study on SAW Damping Sound- absorption Wedge      SAW型阻尼吸声尖劈的研究 短句来源      By using suitable sound-absorption material and structure, we can get an evident effect on noise reduction. 3-5 db (A)of noise level in a loom workshop can be reduced by using sound-absorption ceilings with a cost being not high.      选用合适的吸声吊顶材料和结构,能获得明显的降噪效果,能使车间噪声级降低3—5分贝(A),并且造价并不太高。 短句来源      It introduced designs of acoustic structure of high sound insulation testing room, and applications in the field of sound-absorption, which provide reference for the professional personnel engaging noise control and architectural acoustics.      介绍了高隔声测试室的声学结构设计及在吸声领域的应用,以供噪声控制和建筑声学专业人员参考。 短句来源      Using Sound-absorption Ceilings to Reduce Noise in a Loom Workshop      用吸声吊顶方法降低织布车间噪声 短句来源 更多            查询“吸声”译词为其他词的双语例句 sound absorbent noise deadening acoustical absorption absorb sound sound absorb   查询“吸声”译词为用户自定义的双语例句     我想查看译文中含有：的双语例句 为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法，我们为您准备了出自英文原文的大量英语例句，供您参考。   sound absorption It is found that the system of crystallites ～100 ? in size does not affect the sound absorption and velocity but essentially changes the nonlinear elastic properties. 例句来源       With a view to providing sound absorption in a wide frequency range, one-and two-layer sound-absorbing structures, in which nets are used as absorbing layers, are investigated. 例句来源       Low-frequency sound absorption and attenuation in marine medium 例句来源       The dependence of the absorption on the pH value (which was revealed in the 1970s) and the experimental data on sound absorption at frequencies higher than 5-10 kHz are also taken into account. 例句来源       The combined effect of multiple scattering by random inhomogeneities of a waveguide and bottomcaused sound absorption is known to be a fundamental factor that governs the formation of the sound field in a shallow sea [1, 2]. 例句来源       更多             acoustic absorption Evolution of the hyperacoustic pulse profiles related to the diffraction and acoustic absorption effects was studied. 例句来源       A theory of nonresonant acoustic absorption in Ising magnets is constructed by the nonequilibrium statistical operator method. 例句来源       Data on acoustic (absorption and velocity of sound), optical (refractive index and optical absorption coefficient), and photoelastic (coefficients of acoustooptical quality and photoelastic constants) properties of KY(MoO4)2 crystals are obtained. 例句来源       A strong increase of the acoustic absorption is observed in the vicinity of the annealing temperatures. 例句来源       The physical nature of the elastic inhomogeneities and the acoustic absorption inside the sample which can be "bleached out" by optical radiation is not yet well understood. 例句来源       更多             sound absorbing The damping of the oscillations is treated on the basis of the proposed nonlinear model of the sound absorbing end wall. 例句来源       A sound absorbing device is considered as an example. 例句来源       For example, the firewall between the engine and passenger compartment of an automobile must have adequate mechanical strength, good energy and sound absorbing properties, and adequate fire retardance. 例句来源       The study showed the utility of using these inexpensive materials as sound absorbing devices and as backing materials in the manufacture of ultrasonic transducers. 例句来源       Effect of geometric structure parameters on the sound absorbing properties of a metal fiber material 例句来源       更多             sound-absorption An equation has been obtained for determining the sound-absorption coefficient of fibrous materials as a function of the frequency of the directed sound and of the structural parameters of the sound-absorbing obstacle used. 例句来源         其他 点击这里查询相关文摘     相关查询: 吸声性能 吸声设计 吸声橡胶 吸声处理 主动吸声 吸声制品 吸声特性 吸声理论 吸声末端 低频吸声 吸声结构 吸声柱体  对查询结果不满意

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