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- optical sound propagation 光声传播
- 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 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。
- 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。
- 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。
- Sound Head: The optical sound reproducer mounted beneath the projector head but above the take-up reel support arm or magazine. 声头、音头：安装在放映机头下、卷轴支撑臂或片匣上面的光学声音重现装置。
- Sound Gate: The gate used in an optical sound head, instead of a sound drum, to keep the film sound track precisely aligned on the scanning beam slit during sound reproduction. 声门：光学声音头上用的片门，代替声鼓，使得胶片的声轨在声音重现过程中正好和扫描狭缝光束精确地排列成一直线。
- 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
- variable-hue optical sound recording 变色光学录声
- Fluid Sound Propagation Analysis of Leakage Pipes 漏损管道内流体的声传播分析
- mechanical optical sound recording 机械光学录音
- variable-area optical sound recording 变积式光学录音
- 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
- His optic nerve was hurt in an accident. 他的视神经在一次事故中受到损伤。
- underwater sound propagation path 水声传播途径
- Microscopes and telescopes are optical instruments. 望远镜和显微镜是光学仪器。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
