查询词典 acoustic

The surface acoustic wave filter includes interdigital transducers and reflectors arranged on both sides of the transducer.

声表面波滤波器包括叉指型换能器以及位于该换能器两侧的反射器。

Sound transmission through submerged, fluid filled elastic thin shell excited by incident acoustic waves in the interior domain was calculated using the coupled FEM and BEM method.

利用耦合有限元与边界元方法计算了声波激励下浸没在无界流场中内部充满流体的弹性薄壳声透射。

Studied the mechanism of interior loss factor of structral subsystems and accoustic subsystems. Studied the composing and methods of calculating interior loss factor of some normal subsystems like beams and plates. And analysised how to get the acoustic subsystem interior loss factor from sound absorption coefficient and air attenuation coefficient while no actural model of vehicle to test.

三、分析结构元件和声场内部损耗因子机理，研究将SEA方法应用到车辆系统时对于一些常见梁板子系统的内部损耗因子的构成和计算方法，以及在没有实际车型无法进行实测时，根据表面吸声系数和空气空间能量衰减常数进行理论计算声腔内损耗因子的方法，并利用SANTANA2000车型的实例进行实测对照。

Every time it starts to get really good, every time it reaches a romantic or emotional high, the soundtrack chimes in and ruins the scene with invariably intrusively and often downright awful songs, many of which sound like the producers dug up John Denver and forced an acoustic guitar into his decaying hands.

每一次开始获得真正好的，每一次达到一个浪漫的或情绪高，原声带在编钟和废墟现场，与总是intrusively ，而且往往简直是可怕的歌曲，其中有许多听起来像是生产者挖约翰丹佛和被迫一原声吉他到他腐烂的手中。

The inverse acoustic scattering problem is an important branch of the research of the inverse problems.

声波反散射问题是反问题研究领域的一个重要分支。

Based on the 3-D acoustic equation and Tarantola′s generalized inversion theorem, taking into consideration the character of cross-well survey, a 2.5-D cross-well waveform tomography method in the frequency domain is presented here.

从频率域3-D声波波动方程出发，结合井间观测方式的特点，基于Tarantola广义反演理论，提出了一种频率域2.5-D井间波形层析成像方法。

First,as the start of this thesis work,the acoustic field in an isotropic half-spaceis studied in detail.

第三，研究了用有限元法来模拟激光脉冲线源在各向异性媒质中产生的声场。

It applied Kirchhoff expression to FDTD numerical computation of acoustic scattering problems,and iterated near field on the integral surface to far field that was contributed to,which could b.

针对此问题，提出一种新的外推方法，它将柯西霍夫公式应用于FDTD数值计算中，将积分面上每一步的近场都叠加到它有贡献的远场时刻上去，近远场变换可以与FDTD的场分量迭代同步进行，不需要将外推边界上每一时间步的场值都存储下来，减少了存储空间。

While Crager's sound is more rooted in the purity of alternative acoustic, closer to the styles of Ani Difranco or Kaki King, she is still effected by the "thoughtful way" Emily played, and her ideas on music.

虽然克拉杰的声音更植根于替代声，更贴近阿尼迪弗兰科或卡基国王的风格，她仍然以"周到的方式刘慧卿发挥"影响的纯洁性，在音乐她的想法。

Lush and bountiful, the sacred pulse of the earth resounds richly with gentle rhythms and melodies played by Mike Hamilton on his acoustic guitar, Richard Hardy on a variety of flutes and, of course, Grammy-nominated Peter Kater on the piano.

繁盛，宽松，在土地的神圣的脉搏里面充满着温柔的节奏和音调。这些音乐混合着迈克汉密尔顿的木吉他声，理查德哈代的各种笛声，当然，也有着获得格莱美提名的，皮特凯特的钢琴声。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。