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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;
- nonlinear acoustical effect 非线性声效应
- effect, nonlinear acoustical 非线性声效应
- 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。
- 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。
- Punishment had very little effect on him. 惩罚对他没有什么效果。
- It's certain that every effect must have a cause. 无疑，每个结果必定有其原因。
- That measure will be carried into effect very soon. 这项措施将在最近付诸实施。
- My plan has not been carried out with effect. 我的计划未被有效地执行。
- The room shows off her paintings to good effect. 这个房间把她绘画的优点充分显示出来。
- Her words had a soothing effect. 她的话起了安慰的作用。
- It's the music to heighten the dramatic effect. 那是用于提高戏剧效果的配乐。
- I felt comfortable on narcotic effect. 在麻醉剂的作用下我感到舒服些。
- The general effect of the painting is overwhelming. 这幅画给人总的印象是很有气势。
- The nonlinear acoustics and medical diagnosis 非线性声学与医学诊断
- Her reply is in effect an apology. 她的答复实际上是一种道歉。
- Sesearch on Nonlinear Acoustics in Air Acoustics 空气声中非线性声学研究
- Alcohol has a very bad effect on drivers. 酒精对司机的影响很大。
