声学

Thefrequency analysis of the psychoacoustic model can give the inaudible, redundanelements of audio. In this paPer we employ it to gUarantee the inaudibility of theembedded watermark.

心理声学模型的时频域分析主要用于音频数据的压缩编码，这里主要考虑将其用于音频水印算法中去，以便从理论的角度来考虑嵌入水印的不可感知性。

Musical instrument ; resonance board ; wood ; acoustic property

乐器； 共鸣板；木材；声学特性

Certainly advanced components are integrant, our engineers constantly research acoustic technology and innovation to provide reasonable price and high quality for our clients.

当然先进的部件都是整体，我们的工程师们在不断的研究声学技术和创新，以提供合理的价格和高品质，为我们的客户。

Carefully acoustic design and the use of advanced components contribute to the exceptional music fidelity and speech intelligibility.

细心的声学设计，并使用先进的组件有助于特殊高保真音乐和语言可懂度。

Finally, the future of noise active control is proposed, that is design theory and method of sound interdict strap, active sound absorption and research of new absorption material.

最后，提出噪声控制工程的未来发展方向，即：声学禁带设计理论与方法，主动吸声，新型吸声材料的研究。

Objective To evaluate the roles of sonohysterographyin the diagonosis and management of embedded intrauterine device.

目的 评价宫腔声学造影在诊断及处理宫内节育器嵌顿中的价值。

To avoid the limits of traditional techniquest,he inverse boundary element methodwas used to accurately identify complex noise sources.

基于逆边界元法的噪声源识别技术，利用边界元法建立了声场与结构表面振动速度之间的声学传递向量。

It is proposed that the periodic lamella twins can be grown with the aid of this kind of twin structure and it can be applied to acoustic supper-lattice resonancer.

对孪晶形成的可能原因进行了分析，提出了利用该孪晶结构生长周期性聚片孪晶，并应用于声学超晶格谐振器的可能性。

Lande acoustics and vibration technology to provide advisory services, especially in the area of sound quality engineering.

朗德科技提供声学和振动咨询服务，尤其是在声品质工程领域。

Lande numerous science and technology with industry-leading technology vendors work closely together, committed to the world's most advanced acoustic technology and measurement technology introduction to China, to provide users with standardized and specialized services.

朗德科技与业内众多领先技术厂商紧密合作，致力于将世界先进的声学技术和测量技术引进到中国，为用户提供规范化、专业化的服务。

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。