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In the analysis, a nonlinear wave vibration equation of the thin cylindrical shell including damping and items due to geometric nonlinearities was established and then transformed by Galerkin's method. With different combinations of modes different nonlinear differential equations in modal coordinates were obtained. The Runge Kutta method was used to solve the equations numerically and some features of nonlinear wave vibration were discussed.

在研究过程中，首先，考虑阻尼并引入几何非线性项，建立薄壁圆柱壳的非线性波动方程，然后，采用Galerkin方法对波动方程进行转换，选取不同的模态组合，得到相应模态坐标下的非线性微分方程，最后用Runge-Kutta法进行数值计算并对圆柱壳的非线性波动振动特性进行了分析。

A new strategies for restraining harmonics are presented in the paper, the methods adopt the right carrier frequency and the sine wave superimposed a proper three-time harmonics to make it saddle-shaped wave, produce SPWM waveform to control the inverter switching devices for the on and off .

并提出了一种新的易于工程实现的谐波抑制策略，该方法通过正确选择载波频率和在正弦调制波上叠加一个三次波使之成为鞍形波，产生相应的SPWM波形来控制逆变器开关器件的通断从而改善输出波形。

In comparison, it is proved that the wave functions occuring in the two formalisms are identical, apart from a constant multiple which represents the scalar product of the wave functions of a bare nucleon and a dressed nucleon.

这个常数倍即是物理核子及裸核子的波函数的内乘积。第二，我们讨论了一般的含有二个h函数的Chew-Low方程的解，方程的形式使它们在实轴上在(1，∞)及(-1，-∞)二段上不连续。

By analyzing the result, three most main factors influencing the calculation accuracy are found: the constitution of wave scatter diagram, interpolating the irregular wave and the estimating of roll damping coefficient.

通过分析计算结果提出了影响计算精度的三个最主要的因素：海浪能量谱的构成、不规则波的合成方法、横摇阻尼的估算。

Numerical simulation ; pseudo shock wave ; shock wave/turbulent boundary layer interaction ; schlieren experiment ; asymmetric characteristic

数值仿真；拟似冲击波；冲击波/湍流边界层相互作用；纹影实验；非对称特性

He was also an avid scuba diver, so it's not surprising that Hilary's music is akin to floating in the ocean, wave after wave ...

在我人生最低谷的时候，音乐就象是一条清澈的河，我站在不远处聆听，我知道那始终是河在歌唱，用最自然最。。。

The virtual instrument combined with Ku-Band Microwave Doppler phase detect radar is used for the sea wave height measurement according to the Doppler frequency of the sea wave echo and stores the data.

结合Ku波段多普勒相检雷达，运用虚拟仪器根据海浪回波的多普勒频率来判断海浪变化，测出海浪波高存储数据。

As the water can not be transmitted transverse wave, so seaquake felt when the sea is only the impact of longitudinal wave, when the impact is power to a certain extent on board ran aground people have feelings.

由于海水不能传播横波，因此海震时在海面上感受到仅是纵波的冲击，当冲击力量大到一定程度时，船上的人有触礁的感觉。

B. earthquake, volcanic eruption, tidal wave following earthquake or seaquake, windstorm, flood, overflow of the sea, tidal wave, landslide, subsidence, collapse.

地震、火山爆发、地震或海底地震后之海啸、暴风、洪水、海水氾滥、海潮、山崩、地陷、倒塌。

A new type of seawall capable of absorbing wave energy was developed for trial to improve the wave conditions in the inner part of the Victoria Harbour.

为改善维多利亚港内港部分海浪的情况，该署完成了一项研究，发展出一款能减低海浪反射作用的新型海堤作测试。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。