查询词典 waves

On the animated drawing a complex wave is resoleved into three simple harmonic waves with different frequencies and amplitudes.

该动画是由频率和振幅各不相同的三个简谐波叠加成复杂波的情形。

In general,anisotropy piezoelectric substrate is used for the excitation of Lamb waves.

在兰姆波的激发过程中，一般采用的是各向异性的压电晶体。

Long-term monitoring of the vibrations induced by ocean waves in Antarctic ice shelves is a recent phenomenon.

近期以来开展了对海洋波浪引起的南极洲冰架震动情况的监测。

On the interannual timescale, two waveguides of planetary waves in the northern winter have antiphase oscillation. On the one hand, this interannual oscillation has an interaction with the Northern Annular Mode. On the other hand, it exerts influence on the climate anomalies over East Asia.

在年际时间尺度上，冬季行星波两支波导的变化存在反相关的振荡关系，这种年际振荡一方面影响了北半球环状模的位相，另外一方面导致了东亚地区的气候异常。

Solving antiplane response of triangular hill or structure to incident SH waves by using the idea of assistant functions and division, the standing-wave equation constructed in domain Ⅰ must satisfy the governing equation and the zero-stress condition on the wedges.

利用分区和辅助函数思想求解三角形凸起对SH波散射问题时，在区域Ⅰ中构造的驻波，它应该同时满足三角形斜边上应力自由和控制方程，只有这样，所得到的结果才能是正确的。

Antiplane responses of a scalene triangular hill or structure, an isosceles triangular hill or structure, an isosceles triangular hill with a subsurface cavity to incident SH waves are studied in this paper based on methods of wave function expanding, complex function, moving coordinates and by employing idea of assistant function.

本文在"分区"和辅助函数思想的指导下，综合利用了波函数展开、复变函数、移动坐标三种方法，研究了等腰三角形凸起地形和坝体结构、非等腰三角形凸起地形和坝体结构、浅埋圆孔附近等腰三角形凸起地形等三类问题对SH波的散射。

The so called symmetric and antisymmetric Lamb waves are no longer symmetric and antisymmetric around the center line in the flat plate.

3在波结构上，对平板而言，所谓的"对称"和"反对称"Lamb波由于材料的梯度特性而变得不再严格的关于中心线对称或反对称。

Results show that, the double side excitation method, compared with the traditional single side one, can inhibit the multi-mode characteristic of Lamb waves and generate fundamental symmetric and antisymmetric modes at the relatively low exciting frequency. It can heighten the exciting effect and make it easy to analyze monitoring signals.

研究结果表明：与传统的单面激励方法相比，该激励方法能够抑制Lamb波的多模式特性，在频率较低的情况下可实现基本对称或反对称模式的产生，提高了Lamb波的激励效果，便于监测信号的分析。

The linear theory of antisymmetric ducted gravity waves supported by mesospheric thermal duct is presented, propagation and evolution of gravity wave packets in thermal duct is also simulated by using a nonlinear two-dimensional model. Numerical results show that lower atmospheric wave disturbance can penetrate into the duct area and be trapped.

给出了重力波在中层大气温度波导中的反对称形式导制传播的线性理论模型，并采用二维非线性的数值模型对重力波波包在中层大气温度波导中的传播和演变过程进行了模拟研究。

Its shock waves spread through L'Aquila, shaking to the ground a hotel and several apartment blocks. They wrecked a university residence, trapping many students inside. The earthquake gashed solid 18th-century palazzi and shook the brickwork out of flimsy structures thrown up in the 1960s. Bridges and viaducts in the city, high up in the Apennine mountains that form Italy's backbone, were left perilously fractured.

震波穿过拉奎拉向四周传播，一家酒店和几个公寓住宅区被夷为平地；某大学宿舍区遭到破坏，多名学生被困其中；许多坚固的18世纪建筑出现了裂缝，多座建于20世纪60年代的建筑的脆弱墙体出现砌砖脱落；市内多座桥梁和高架桥断裂，这些桥梁曾连接亚平宁山区，是意大利的主干道。

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。