声学

Studied every acoustic and vibration characteristics of vehicle system making use of the SEA car model that had been established. Utilizing the specialty of SEA, contrasted the acoustic contributing of panel in every frequency bands by comparing the radiant energy into cab directly with creativity. Compared the effects of every type of factors on the interior acoustic environment of car.

七、利用建立的统计能量分析模型进行车辆系统各个声振特性的分析，研究车辆行驶速度和行驶路面的等级等因素对车内声学环境的影响；利用统计能量分析方法的特点，创造性地通过直接计算仿真实际工况下各个部件对车内辐射能量的对比进行板件各频带声学贡献的分析。

Norm on Acoustical Design and Measurement of Noise Barriers ...

1.1 本规范规定了声屏障的声学设计和声学性能的测量方法。

The creation of halls with this new listening impression needs a high degree of experience for architect and acoustician.

创作具有全新声学体验的厅堂需要建筑设计师和声学工程师的丰富经验。

The Conrad Prebys Music Center's larger 400-seat concert hall follows the physical approach to acoustical design—in this case the inspired work of legendary acoustician Cyril Harris in collaboration with Ashton Taylor of HFP Acoustical Consultants in Houston.

康拉德。普利贝斯音乐中心的另一个较大的400座音乐厅采取了物理改变的方式进行声学设计-这样，印象深刻的杰作是由富有传奇色彩的声学家西里尔。

On the contrary, the practice of music education would be beneficial to the research of acoustics too.

研究结果显示，音乐教育的各个层面都深受声学的影响，只有对声学有正确的认识，音乐教育才能得到良好的效果。

The knowledge of physiological acoustics and psychological acoustics is the basis of the research of 3D sound technology.

对人类生理声学和心理声学的了解是研究三维声音技术的基础。

The loudspeaker device may further include a fourth acoustic driver comprising an axis, arranged along the line so that a projection onto the azimuth plane of the fourth driver axis and the projection of the second driver axis are coincident.

扬声器装置还可以包括具有轴线的第四声学驱动器，沿着所述直线设置所述第四声学驱动器，使得第四驱动器轴线在方位平面的投影和第二驱动器轴线的投影重合。

Chapter Two Further Study On Two Types of Tone Sandhis Supposed by Traditional Dialectology The further study is relied on the research of F0 and elapsed time, and more phonetic dealing with the original data.

对这一问题的分析将基于论文第一章所论述的上海方言单音节声调和两类变调的声学特性（基频F0和时长两因素），以及在这两个基本声学特性上所作的语音学意义上的对数据的进一步处理。

The acoustic analysis by computer technique , aero-dynamic measurement and the examination by laryngoscopy are of value in the diagnosis and treatment of functional dysphonia.

采用喉镜、计算机声学分析和空气动力学检测方法获取喉部图像、嗓音声学及空气动力学特征有助于功能性发声障碍的分类、诊断及鉴别诊断，并为进一步选择合适有效治疗方法提供客观依据，因而这些检测方法在功能性发声障碍中有一定应用价值。

Objective To investigate the clinical feature, characteristics of acoustic and aero-dynamic peremeters of functional dysphonia contrasted with the normal adults and evaluate the value of acoustic and aero-dynamic measurements in the diagnosis and treatment of functional dysphonia.

目的 观察功能性发声障碍喉镜图像、嗓音声学特征及空气动力学变化，探讨喉镜检查、计算机声学分析、空气动力学变化在功能性发声障碍诊断、鉴别诊断、分类及治疗中的应用价值，初步建立功能性发声障碍临床诊断标准。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。