Local people ' s governments at or above the county level shall , in accordance with the national standards for acoustic environmental quality , divide their respective administrative regions into different zones for application of different standards for acoustic environmental quality and exercise control accordingly 县级以上地方人民政府根据国家声环境质量标准，划定本行政区域内各类声环境质量标准的适用区域，并进行管理。
In chapter four , a large number of computer simulations were coducted on the base of analyses of a few adaptive algorithms . an improvement of mvdr algorithm was done and got the revised mvdr algorithm . then simulated it through the computer 本文通过用改进的mvdr算法对水池实验数据进行处理，初步探索了自适应波束形成在水声环境下的应用，并得到了在水声环境下应用自适应波束形成算法的一些结论，指出了以后需要改进的地方。
It is concluded that the primeval design of hv ' ac system decide that the building noise environment is good or bad . as to say how to resolve the six sides problems : machine noise , machine vibration , fan noise , duct noise , draft noise and cross - talk noise 我们认为：建筑(使用hvac系统)声环境的好坏取决于hvac系统初期的设计，也就是如何解决好机械噪声、机械振动、风机噪声、管路噪声、气流噪声以及管路交互传递噪声这六方面的问题。
Firstly , this article puts forward three acoustic evaluative parameters that the good acoustics should guarantee : reverberation time , early reflected sound , sound coloration , after the analysis of the particularity of the acoustics space in living room on the basis of theoretical research 论文首先在理论研究的基础上，分析了起居室声学空间的特殊性，提出保证良好的声环境所需的音质评价参量：混响时间、早期反射声、驻波和声染色。
Synthetic aperture technology origins from radar field firstly . the main reasons for its unsuccessful application in sonar are the low sound speed ( compared with light ) , irregular carrier movement and the complexity of underwater acoustic environment 合成孔径原理最早来源于雷达领域，但它在水声领域的应用远不如在雷达领域应用得成功，其原因主要在于水中相对较低的声传播速度(相对于光波波速) 、声呐载体的不规则运动和水声环境复杂性的影响。
And with the special character of the natural gradient , the performance of the algorithm is discussed . applying blind source separation to the real situation is the basic goal . this paper uses the blind source separation algorithms to process the data received form an experiment in water tank 本文通过用盲分离算法对水池实验数据进行处理，初步探索了盲分离在水声环境下的应用，并得到了在水声环境下应用盲分离算法的一些结论，指出了以后需要改进的地方。
Abstract selecting certain section of north - south elevated road in shanghai to develop and set up several curved and erect , turnable noisae - preventing screens , and making comparative noise level test and then conducting analysis and approach on sound environment werw presented in this article 摘要在上海市区南北高架与地面道路建设期间，选择了一些典型的高架路段，开发和设置了弧型与面立型两种可翻转式防噪声屏，并作了对比噪声测试，进行了声环境的分析、探讨。
According to analyzing jilin province present condition of city people ' s residence , the article studies the relation between noise and infecting factors , revealling the rule of the noise changes , discussing effective road of controlling noise , providing scientific basis for improving the quality of the people ' s residential environment 摘要通过吉林省城市人居声环境现状的分析，研究噪声与影响因素的相关关系，揭示噪声变化规律，探讨控制噪声污染的有效途径，为改善城市人居声环境质量提供科学依据。
In this paper , the influencing factors of acoustic environmental quality of residential area including noise from transportation , industry , construction and society were analyzed , the comprehensive influence of acoustic environmental quality of residential area between indoor and outdoor ones was studied , the evaluation index system of acoustic environmental quality of residential area based on influencing elements of acoustic environmental quality of indoor and outdoor ones was established , the control standard and improvement strategies including planning , technology and management of acoustic environmental quality of residential area were put forward , the gray clustering evaluation model of acoustic environmental quality of residential area was set up , and a case was evaluated 摘要分析了居住区声环境质量的影响因素，包括交通、工业、施工和社会生活等噪声；研究了居住区声环境质量是居住区室外声环境质量和室内声环境质量的综合影响反映；构建了基于居住区室外声环境质量和住宅室内声环境质量影响因子的居住区声环境质量评价指标体系；提出了居住区声环境质量分级控制标准；从规划、技术和管理的等方面提出了居住区声环境质量的控制措施和改善方案；建立了基于灰色聚类分析方法的居住区声环境质量评价模型，并进行了实证评价应用。
The underwater - radio buoy for use as obtaining the ocean ' s acoustical parameters , applied for synthetic experimentations that seeing about ocean underwater acoustic environment , can obtain and memorize the data for all kind of underwater acoustic experimentations , for example , acoustic propagation , reverberation , ocean ' s noise etc . the system can not only reduce requires in quantity of using ships and scales in military strength equipment but also keep away from ships environments , reduce background noise and increase the quality of the gathered data 海洋环境参数获取浮标监测系统用于海洋水声环境综合考察试验中，获取和记录水声传播试验数据。该系统不但可以减小参试舰船数量要求，降低兵力配备规模，而且可以远离舰船环境，降低背景噪声，提高所采集数据的质量。因此，浮标的研制对于保证未来海试完成既定试验目标、顺利完成试验项目具有重要意义。
