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- sound propagation environment 声传播环境
- Sound Propagation in the Nocturnal Boundary Layer. 夜间边界层中的声传播。
- The sparker was originally developed for fundamental studies of underwater sound propagation and of subbottom geology. 火花发生器原来是为了进行关于水下声波传播及海底地质的基础性研究而制造的。
- The result of simulation proves its effectiveness in improving the location accuracy than traditional TDOA and TDOA/AOA method in NLOS propagation environment. 仿真结果表明，该算法能显著提高传统的TDOA和TDOA/AOA方法在NLOS传播环境下的定位精度。
- The sound propagation in fluid-filled borehole is a rationale of acoustic well logging technology. 充流体裸眼井模型中的声场传播是声波测井技术的理论基础之一。
- Results:With the change of the propagation environment, the density of the intermediate host of paragonimus and the infection rate of brook crab reduced significantly. 结果:滋生环境的改变使并殖吸虫中间宿主的密度和溪蟹的感染度明显下降。
- The sound propagation in duct with non-locally reacting liner is discussed in this paper. 本文对声波在空腔非局域反应声衬管道内的传播进行了研究。
- The simulation results demonstrate that the direction-of-arrival of MPCs described by the elevation and the azimuth are slightly locally favorable in two propagation environment. 仿真结果表明，在这两种传播环境中，多径分量的波达方向在仰角和水平角维度上均存在一定的局部偏好性，不满足均匀分布的假设。
- Methods:The propagation environment and the density of the intermediate host of paragonimus were observed,and the infection rate of the host were examined. 方法:定期对中间宿主滋生环境和中间宿主的密度进行观察，同时检查中间宿主感染情况。
- A analytical mode matching method is developed for the sound propagation through rectangular flow duct with mean flow and with lining. 流管实验装置是测量有流动情况下航空发动机消声短舱内声衬声阻抗的主要装置。
- A system for the establishment and control of an electromagnetic signal propagation environment containing a particular set of desirable radio frequency characteristics within a bounded area. 一种系统用以建立和控制一种电磁讯号传播环境包含在一封封地区特性的特别组合中所需的射频。
- Abstract: In this paper the current situation and trends on the study of pipeline vibration and sound propagation are completely summarized,and the researches of this area are looked forward to the future. 文摘:本文对管道振动及声传播领域的研究现状和水平分类作了比较全面的综述,并对今后开展潜艇管道振动、声传播及噪声控制的研究进行了展望。
- Based on the CTD data collected on PN section in the East China Sea during March of 2001, the numerical simulation method is used to study the effect of sea-bottom undulation on sound propagation on PN section in the Kuroshio area. 利用2001年3月东海PN断面"973"调查获得的CTD数据,用数值模拟方法研究了PN断面黑潮区域海底起伏对声传播的影响。
- sound propagation in anisotropic crystals 声波在各向异性晶体中的传播
- Fluid Sound Propagation Analysis of Leakage Pipes 漏损管道内流体的声传播分析
- anomalous sound propagation in sea water 水中超远距离传播
- sound propagation attenuation model 声传播衰减模型
- A sound mind is inseparable from a sound body. 健全的精神是与健康的身体是不可分割的。
- Cosmologists can precisely estimate the actual size of this wave at the time of recombination because they know how quickly sound propagated in the primordial plasma. 又因为宇宙学家知道声响在原生电浆中的传播速率，他们可以精准估计再复合时期这些声波的确实大小。
- underwater sound propagation path 水声传播途径
