声学的

A good halls, want to get good sound quality, building on the acoustic design must meet two conditions: IF the right reverberation time and ideals of the reverberation time curve.

一个好的厅堂，想要获得好的音质，建筑声学设计上必须满足两个条件：合适的中频混响时间和理想的混响时间曲线。

In complicated acoustic environment where the characteristics of noise field and reverberation time are unknown, the performance of the speech enhancement methods with microphone array face a great challenge.

在复杂的声学环境中，通常噪声场特性和混响强度是未知的，这样就对麦克风阵列语音增强算法的性能提出了较高的要求。

Based on thermodynamics and thermo-acoustics, the effect of the pulse tube structure was analyzed. It was found that the cross sectional area of the pulse tube influence greatly the working fluid pressure and temperature distributions.

结合热力学和热声学两方面的理论，对脉管制冷机中脉管的结构进行了分析，发现脉管的截面积与其内工质压力、温度分布匹配与否，对脉管制冷机的性能有很大影响。

For these panels to act properly, the sheathing before them had to be more than 50% sound permeable, which was accomplished by different manners of perforation and the use of acoustic materials.

对于这些小组采取适当行动，他们面前的护套，必须超过50％，良好的透气，是由不同的方式，穿孔和声学材料的使用完成。

The company has rigorous technological teams of a fine craftsmanship,style.produced " brilliant "" schumannter " series pianos,Adjust a teacher to adjust repeatedly through outstanding temperament every one It's excellent acoustics quality and stronger expression take the fancy of professional personage and music-lover in the domestic place.

其音色优美，音量宏大，音准稳定，键盘触感舒适、弹奏灵敏，机件经久耐用。其优异的声学品质和较强的表现力赢得了国内外专业人士及音乐爱好者的喜爱。贵州遵义音乐艺术学校校长陈明，受聘为我厂在贵州地区的高级调律师。为广大用户提供钢琴调律及维修服务。

It is an advanced technology. In all these methods,acoustic velocity thermometry based on the acoustic travel time is a better one with a wider use.

而在声学测温的各种方法中，基于声波传播时间的声速测温方法又是一种比较好的、应用更广泛的方法。

The ubiquity of this phenomenon suggests that some biological functions are the same for all species—in fact.

这种现象的普遍性，告诉我们有关生物学的作用是经由这些特别的声学讯号而传递的。

This paper concerns with the study of the acoustic characteristics on velar stops.In Standard Chinese,Chinese dialects and many other languages,there is a great difference between velar stops and bilabials,alveolars in VOT, silence ,burst,and so on.

通过对汉语普通话、方言和其他几种语言中塞音①的声学特征进行考察，发现其中的舌根塞音/k/、/k' /在成阻、持阻和除阻爆破几方面均具有一些与双唇塞音、舌尖塞音不同的表现，并进行了初步的探讨与总结。

In this paper, the new idea simultaneously using the Planar Laser Induced Fluorescence technique and the Acoustic Doppler Velocimeter technique is applied to research the coherent structure of turbulent boundary layer.

本文在评述紊流边界层拟序结构研究现状的基础上，受前人研究工作的启发，提出了使用平面激光诱导荧光技术与声学多普勒测速技术相结合的方法同步观测和研究紊流边界层拟序结构的新思路。

After esterification by BTCA Acoustic properties of picea sitchensis Carr.andChamaecyparis Iawsoniana ParI were changed,(treated/untreated ratio):Loss tangentdecreased 10～2424% in the tangential ofpicea sitchensis Carr,9～17% and 10～22% in thetangential and radial directions of Chamaecyparis Iawsoniana ParI.,respectively.Specificdynamic Young's modulesand acoustic radiation coefficient of two wood changedunremarkably,in the tangential direction with increment of ASE.Specific dynamic Young'smodulesincreased 3～9% in the radial direction.tgδ/E of decreased 9～27% intangential of picea sitchensis Carr,7～14% and 10～26% in the tangential and radial directions ofChamaecyparis Iawsoniana ParI.,respectively.

BTCA酯化处理西特克云杉和美国扁柏木材的声学性能发生了变化，处理材与未处理材比值，损耗角正切tgδ：西特克云杉纵向下降10～24％，美国扁柏下降纵向9～17％，径向10～22％；比动态弹性模量E/ρ：两种树种的纵向变化均不明显，随着ASE上升变化不规则，美国扁柏径向上升3～9％；声辐射阻尼的变化类似于比动态弹性模量E/ρ的变化；tgδ/E：西特克云杉纵向下降9～27％，美国扁柏下降纵向7～14％，径向10～26％。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。