声学

The experiment rig was designed and built for measuring the acoustic characteristics of exhaust mufflers.

为进一步检验理论方法的正确性，设计并建立了排气消声器声学特性测量实验台。

The study of sound is of importance not only in music and speech but also in communications and industry.

声学研究不仅在音乐和语言方面很重要；而且在通信和工业方面也很重要。

In line with the purpose of managing the international first-class musical education, the Electro-Acoustic Music Center of Shanghai Conservatory of Music takes references to the research systems of the Conservatoire National Supérieur de Musique de Paris and the Institut National de l'Audiovisuel, Groupe de Recherches Musicales and other institutions.

本着办国际一流音乐教育的宗旨，上海音乐学院电子音乐声学中心参照法国巴黎国立高等音乐学院，法国国家电台音频研究所等同类机构的研究体系，配备了处于当下世界前沿水平的最先进的硬件、软件和相关设施。

It is mainly for Acoustic uitar Cymbals Piano Strings Woodwinds Ensembles.

主要用途于：声学吉他、鐃鈸、钢琴、絃乐器、木管乐器、鼓乐对。

Results: The retrograde contrast sonograms of urethral diseases which we got were more clearer than those of the others.

结果：逆行尿道声学造影对尿道疾病的图像显示明显优于其它方法。

Urethral retrograde contrast sonography is helpflul to collect more informations of urethral sonograms for diagnosis.

逆行尿道声学造影能为临床诊断提供更多的尿道病变的超声图像资料。

Three-dimensional finite element method was developed to predict the acoustic attenuation performance of perforated tube dissipative silencers.

将有限元法应用于预测穿孔管阻性消声器的声学性能。

The 3-D numerical methods are used to predict the acoustic attenuation performance and flow resistance characteristics of internal combustion engine exhaust silencers.

使用三维数值计算方法预测内燃机排气消声器的声学性能和阻力特性。

In order to study local scouring field near the pier with sediment control dam ,the 3-D velocity field of the pier in monomer model is subtly measured by ADV velocimeter of Sontek.

采用Sontek公司声学多普勒测速仪对有拦沙坝防护的模型桥墩附近流场进行了精细测量，对桥墩冲刷坑内三维流速分布进行了分析，给出了冲刷坑内三维紊动特征量的分布，分析研究了有拦沙防护坝时桥墩局部冲刷的三个新特点，提出了拦沙坝的适用条件。

In order to study local scouring field near the pier with sediment control dam, the 3-D velocity field of the pier in monomer model is subtly measured by ADV velocimeter of Sontek. This paper analyses the velocity distribution in the scouring pool of pier and takes turbulent strength distribution in different direction. Three new characters for the local scours of piers with the sediment control dam are analyzed and the dam's applicability is brought forward.

采用Sontek公司声学多普勒测速仪对有拦沙坝防护的模型桥墩附近流场进行了精细测量，对桥墩冲刷坑内三维流速分布进行了分析，给出了冲刷坑内三维紊动特征量的分布，分析研究了有拦沙防护坝时桥墩局部冲刷的三个新特点，提出了拦沙坝的适用条件。

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。