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- 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。
- underwater sound propagation path 水声传播途径
- underwater sound propagation 水声传播
- Sound Propagation in the Nocturnal Boundary Layer. 夜间边界层中的声传播。
- Urick, R.J., Principles of Underwater Sound, McGraw-Hill Companies, 1983. 刘金源,水中声学-水声系统之基本操作原理,国立编译馆,民90。
- This paper describes the design of underwater sound projector using thinwalled piezoelectric ceramic ring. 本文叙述薄壁压电陶瓷圆管水声发射换能器的设计。
- ZHANG Guxiang,HE Zuoyong,ZHANG Bing.Near-field acoustic holography on underwater sound sources. 张德俊;夏献华;鄢锦;程建政;王群;朱念秋.;近场声全息成像方法的研究
- 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 PVDF piezoelectric membrane is used as sensitive element for measuring the scalar pressure of the underwater sound field. 而声压通道采用PVDF压电薄膜作为敏感元件,以拾取水下声场中的标量信息。
- Later whenever saw Shui Huo hears the underwater sound, even thinks of the water, may cause sends the above symptom, therefore calls " hydrophobia ". 以后每当看到水或听到水声,甚至想到水,都可引起发上述症状,所以又称"恐水病"。
- 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。
- PVDF piezoelectric membrane is used as sensitive element for measuring the scalar pressure of the underwater sound field. 而声压通道采用PVDF压电薄膜作为敏感元件,以拾取水下声场中的标量信息。
- Underwater sound communication is quite effective for joint tactical actions of submarines with other sub and / or surface ships. 水声通信系统对于水面战舰和潜艇之间,以及潜艇和潜艇之间的联合战术动作时非常有效的。
- The gradient polyurethanes with polyurethanes/inorganic fillers were prepared and their underwater sound absorption coefficients were measured in sound tube. 制备了由聚氨酯/无机填料组成的梯度聚氨酯,并在声管中测试其水声吸声系数。
- Underwater sound was received using a hydrophone connected to a charge amplifier and a data-acquisition system for capturing the main characteristics of the sound. 在本文中,我们提出一个使用单一摄影机的即时手势辨识系统,用以控制虚拟环境中摄影机的方位与运动以达到互动导览的目的。
- 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。
- We may assume that the meanings of these underwater sounds correspond closely to these with which we are familiar on land. 我们可以假定水下声音和陆地上我们熟悉的声音含意相似。
- A sonar array is a device towed behind a ship that listens and locates underwater sounds. 声纳阵列是一种拖拽于舰艇之后侦听及定位水下声波的装置。
- 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