波的传播

The wave propagation along axis direction in piezoelectric hollow cylinder is studied.

对压电圆柱壳体内波的轴向传播进行了研究。

A new method for computing propagation constants and amplitudes of creeping wave modes on an infinite conducting circular cylinder is presented.

本文提出了一种计算金属圆柱表面爬行波电流传播常数和幅度的新方法。

For large wavelengths, the velocity is constant.

对於长波长的波，传播速度是常数。

Group velocity: The velocity with which the energy in a wave train travels.

一组波列中能量的传播速度。

The theory of elastic wave propagation in damaged media was studied.

对弹性波在损伤介质中的传播理论进行研究。

In order to select optimal grid and good computation efficiency to recover the entire signal, aiming at the Ricker wavelet commonly used in forward modeling, we analyzed the alias and signal restoration problem in finite-difference method based on spatial sampling theorem and seismic wave traveling regulation in media with different velocity, to derive quantitative relationship among the modeling grid size, minimum velocity of model layer, and recovered main frequency of wavelet.

为了选择最佳的网格尺寸以及以最小的计算量完整地恢复出信号，针对地震波场正演模拟中经常使用的Ricker子波，根据空间采样定理和地震波在不同速度介质中的传播规律，分析了有限差分算法中的假频和信号恢复问题，推导出模拟网格尺寸、模型地层的最小速度和能够恢复的子波主频之间的近似定量关系，并用数值算例验证了这一关系。

Wave propagation in a micropolar medium is more complicated than in a linear elastic medium, with two coupled wave equations.

在微极介质中波的传播路径要符合两个耦合波方程，这比在线弹性介质中复杂得多。

The propagation behavior of Lamb waves in a piezoelectric plate under biasing electric fields was investigated in this paper.

本文研究了偏压电场作用下，Lamb波在压电板中的传播行为。

We have developed an array-based method to detect and locate sources of the hum, using a propagating wave approach, the dispersive properties of Rayleigh waves and data from two large aperture arrays of very long period seismometers, in California and in Japan.

我们发展了基于阵列的方法来对地球的&hum&进行检测和定位，使用了波传播的方法和瑞利波的频散特性并利用了在加州和日本的两个超长周期、大孔径的地震阵列记录到的数据。

By three-dimensional linear standing wave,the wave propagation over a bar of scheldt flume experiment carried at Delft hydraulics and tidal current field simulation of waters of between Denmark and Sweden etc example,the model is verified to have advantages such as stability, high efficiency etc,and proved suitable for the simulation both water body of large range and long period.

最后通过三维线性驻波、Delft水力学中Scheldt水槽实验的周期性入射波通过淹没潜堤的传播问题以及连接丹麦和瑞典间海域的潮流场模拟等算例，从多方面验证了模型具有稳定、实用、高效、灵活等的优点，不但能对短波问题进行精确成功的模拟，而且也适合对大范围的水体进行长时段的模拟。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。