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- Based on the theory concerning the nonlinear acoustic resistance of an orifice presented by Zhao Song-ling et al. 本文基于赵松龄等发展的小孔非线性声阻理论,导得对于驻波管中垂直入射以及行波管中旁支入射二种情况下的穿孔声学结构的非线性声阻率比表示式。
- In the present paper, a discrete-vortex model is employed to study nonlinear acoustic properties of an orifice. 本文从波涡相互作用机制出发,发展了一种旨在研究矩形穿孔板在切向流条件下非线性效应的离散涡模型。
- Nonlinear acoustic parameter B/A of biological media such as heart, liver, spleen, kidney, muscle, fat, bile and urine had been measured. 本文应用相对测量法,并加入衰减与衍射修正,测量与研究了高声衰减生物媒质的非线性声参量B/A。 结果表明:心、肝、脾、肾、肌肉组织的B/A值为7左右;
- The method presented is sensitive to the microcrack, demonstrating the potential of nonlinear acoustic waves to provide a quantitative evaluation of the deterioration of cement-based materials. 证明本方法对混凝土材料微裂缝的探测非常敏感，对于水泥基材料而言，是一种极具潜力的材料退化评估方法。
- The acoustic nonlinearity parameter is an important parameter in nonlinear acoustics. 非线性声参量是非线性声学的一个重要参量。
- Nonlinear acoustic wave propagation in periodic layered system 层状周期介质中的非线性平面声波的传播
- The nonlinear acoustics and medical diagnosis 非线性声学与医学诊断
- Sesearch on Nonlinear Acoustics in Air Acoustics 空气声中非线性声学研究
- Opened the show with an acoustic set. 不用电子乐器开始演出
- You must have an acoustic problem. 你的听觉一定有问题。
- nonlinear acoustic 非线性超声
- The acoustic window is approximately 1 in square. 声波干扰带约为1英?觥?/UK>
- An acoustic guitar;an acoustic bass. 非电吉他，非电子低音提琴
- SHANGHAI SHEN HUA ACOUSTIC EQUIPMENT CO., LTD. 上海申华声学装备有限公司。
- Nonlinear data exhibit considerable variation. 非线性数据变化较大。
- AAC Acoustic Technologies Holdings Inc. 查看该公司所有职位。
- Study of model well test for acoustic log. 声波测井模型井实验研究。
- Optimal control for nonlinear plants. 非线性对象优化控制。
- KOREA HYUNDAI AUTOMOBILE ACOUSTIC CO. 韩国现代汽车音响株式会社。
- Ensemble Filtering for Nonlinear Dynamics. 非线性动力学的合成滤波。
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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
