查询词典 waves

This solution was expressed a function of offset, compressional and shear waves velocities, the traveltime of P-SV converted waves.

Schneider（2002）从一个关于转换点的三次方程中推导出了P-SV转换波转换点位置的一种解析解，这种解是偏移距、横纵波速度和P-SV转换波旅行时的函数。

Seismic anisotropy can be studied by four basic seismic wave behaviors, e.g, direction-dependent travel time anomalies, shear-wave birefringence, surface-wave scattering, and direction-dependent conversion of compressional waves to shear waves.

目前人们利用4种基本的地震波现象研究地震各向异性，如横波双折射、面波散射、与传播方向有关的走时异常和PS转换波震相。

These natural geomagnetic waves are being replaced by artificially created very low frequency ground waves coming from GWEN Towers.

这些天然地磁波正在被人工制造的来自GWEN发射塔的甚低频地波所代替。

Secondly, waves will dissipate when they transmit over a porous medium. Consequently, the reflection rate of waves from breakwaters can be reduced, and the wave run-up in front of the structure could be reduced, too.

本文从理论分析和试验研究两个方面对斜向波与开孔沉箱的相互作用进行了深入研究。

Instead, he argued, light waves can travel in vacuo without being supported by any material—unlike sound waves, which are vibrations of the medium in which they propagate.

他主张，光波可以在真空中行进，并不需要任何物质来支撑，不像在介质中传播的声波，其实只是介质的振动而已。

In Chapter 3, a comprehensive analysis of the coupling coefficients between plane waves in conventional dielectric media and Bloch waves in photonic crystals with effective negative refractions is performed by the layer-KKR method.

第三章，我们运用layer-KKR方法计算得到平面波与半无限负折射光子晶体中Bloch波的耦合效率，从而可以将介质-等效负折射率光子晶体的透射率与介质-负折射率介质的透射率进行系统的比较。

Base on the analysis, the interface between a nonlinear lefthanded material and a righthanded material can support both forward TE surface waves and backward TE surface waves under certain conditions.

针对电磁波在非线性左手系材料中的传播性质，分别研究了左、右手系材料界面以及两左手系材料界面上非线性TE表面波的传播行为讨论了导波的频率特性、色散关系以及群速度随频率的变化规律分析表明，两种界面上的非线性TE表面波均存在频率通带和禁带，且带宽是传播功率的函数揭示了在一定条件下，左、右手系材料界面上既可以支持正向传播的非线性TE表面波，也可以支持反向传播的非线性TE表面波；两左手系材料界面上表面波的传播性质因材料参量的变化差异较大，一定参量条件下，该界面上仅支持反向传播的非线性TE表面波。

Results:①Normal EEG can neither exclude epilepsy nor exclude brain lesions which cause epilepsy;②Diffuse slow waves are not only the general changes of EEG during the intermittent stage of grand mal,but may be also a characteristic of the brain lesions;③The epileptic waves can only indicate the form and distribution of the abnormal discharges of the brain neurons,but cannot indicate the location and extent o...

结果：①正常EEG既不能排除癫痫，也不能除外引起癫痫的脑部病变；②弥漫性慢活动波不仅是强直阵挛性发作间竭期EEG的一般性变化，而且可能是脑部病变的一个征象；③癫痫波只能表明脑神经元异常放电的形式和分布，不能说明病变的部位和范围，更不能提示病变的性质；④本组继发性癫痫最常见的病因是头颅外伤，以后依次为脑萎缩、颅内炎症、窒息、产伤。

We also discuss observations of infragravity waves on broadband ocean bottom seismometers located off-shore California, and their relationship to wind waves and seismic noise, showing that the ocean/solid earth coupling occurs near the coast.

我们也讨论了在加州近海布设的宽频带海底地震仪观测到的重力波以及它们与风波和地震噪音的关系，发现海洋/陆地的耦合发生在近海。

Radar waves go through clouds or fog quite well, whereas light waves do not.

雷达波能非常容易地穿过云和雾，而光波却不行。

There had been a moment during the breakfast meeting, though, after the backslapping and the small talk and when all of us were seated, with Vice President Cheney eating his eggs Benedict impassively and Karl Rove at the far end of the table discreetly checking his BlackBerry, that I witnessed a different side of the man.

那次早餐会期间，在表示过关心和寒暄以后，我们所有人坐了下来，我注意观察了一下，副总统切尼面无表情地吃着班尼迪克蛋（Eggs benedict，源自美国，以英式松饼、火腿、水煮蛋以及荷兰酱组合而成），卡尔。罗夫在餐桌的远端谨慎地经常查看他的黑莓手机，我目睹了他所不为人知的一面。

Talk Undelete failed; someone else may have undeleted the page first.

Talk 无法删除选定的页面或图像（它可能已经被其他人删除了）。