查询词典 wave

In addition, the figures of the isobars of the maximum pressure of the micro-pressure wave are given with a infinite baffle and without the baffle at the tunnel exit when the coming compression wave is a weak shock wave.

文中针对到达隧道出口附近的压缩波为弱冲击波的情况，给出了隧道出口处设无限大挡板和不设挡板时微压波压力峰值的空间分布图。

It occurs with any type of wave, including sound waves, water waves, electromagnetic waves such as light and radio waves, and matter displaying wave-like properties according to the wave杙 article duality.

衍射发生在任何形式的波上，包括声波，水波，电波以及光波，表现出来的波浪形的特性都遵从波粒二象性。

The above multiple changes will produce 2 kinds ofwaves, Matter waves and mechanical wavesthat spread at the same time. Because the electromagnetic wave is amatter wave, it is the medium. Since the multiple exchanges of theelectrons state can be regarded as electrical vibration, and thevibrated electrons have magnetic fields and electrical fields at the same time, the electromagnetic wave will be produced. Then, because the electron itselfis a matter micro particle, it can producemechanical waves which can propagate outside withelectrical magnetic waves.

这种状态改变的多次往复，就会产生两种波，一种物质波，即电磁波；一种机械波，并且这种机械波是以同次产生的电磁波为媒质进行传播的，，这是因为本种状态的多次往复，可以看作是一种电子振动，振动的电子同时具有磁场和电场，所以能够产生电磁波，又因为电子本身是一个物质微粒所以他能够产生机械波，并且是横波，并随电磁波进行向外传播。

The two kinds of PhC TWTs are the interdigital slow-wave structure and metal grating slow-wave strucutre with two-dimensional dielectric PhC, and the meander line slow-wave structure with PhC and cutoff-waveguide structures.

第四章讨论了利用缺陷模式工作的二维光子晶体栅慢波电路和光子晶体对插销带状束行波放大器，和光子晶体-截止波导曲折线慢波电路行波放大器的设计方法。

By using two different three-dimensional source distri- bution techniques, three-dimensional translating-pulsating source (3DT) and three-dimensional pulsating source (3DP), numerical investigations have been carried out for a high speed monohull ship (RD-200) advancing in oblique waves. The numerical results are compared with experimental values obtained from wave load tests carried out at the SSPA. These extensive test results cover different wave directions at a wide range of wave frequencies.

本文在高频运动的假设之下，使用一种简化的三维振荡(3D pulsating)格林函数，3DP，以及与实际波系接近的三维前进－振荡(3D Translating-pulsating)格林函数，3DT，对於一艘高速单体船(RD-200)进行斜浪中规则波之波浪动态压力负荷分析；理论计算将以两种三维源点法进行波浪负荷评估并与由船模试验加以验证，船模实验於瑞典SSPA方型风浪水槽进行。

Crosshole seismology ; reflection wave ; upgoing wave ; downgoing wave ; high resolution ; image

井间地震；反射波；上行波；下行波；高分辨率；成像

The results show that when gravity wave's propagating in the homogenous winds, the nonlinearity is stronger in the fair wind than in the contrary wind, the background winds change the propagation velocity and path, and when gravity wave's propagating in the homogenous winds, the vertical wavelength decreases, the average upgoing energy flux reduces which implies the ambient winds absorb the energy of the wave, realizes coupling of the different atmosphere layers.

结果表明，当重力波在均匀风场中传播时，非线性效应在顺风场中比在逆风场中更显著，背景风会改变重力波在水平方向的传播速度和传播路径；当重力波在剪切风场中传播时，重力波在垂直方向上平均能流随高度的增高而减少，表明背景吸收了重力波的能量，在重力波向上传播的过程中，实现了大气各层之间的耦合。

The results of computation show that this method is very effective for reducing and controlling the transverse oscillation of wave motion and for the calculation of wave particle velocity of wave motion on free surface, w...

计算表明：这种0—1混合型边界元的剖分方式，在控制和减缓波浪&横向振动&幅度及水面单元水质点波动速度的计算方面，显示出了其独到的优越和灵活之处，为时域内的波浪非线性变形计算提供了时步上的数值保证

Testing results of piles under low strain integrity are normally interpreted using one-dimensional stress wave theory. While one-dimensional stress wave theory is acceptable for pile-driving analysis the responses of piles integrity tests can not be adequately simulated when the hammer and the incident wave length are small in relation to the diameter of the pile.

基桩动测问题的理论基础一维应力波理论只有在锤径桩径比、波长桩径比、桩长桩径比足够大时才能近似成立，否则该问题实际上为应力波在柱体中传播的三维问题。

Using finite-element method the effects of long objects, such as cage, train and metal pit prop, on electromagnetic wave cutoff frequency is researched systematically in regular tunnels, and it is shown that the long metal objects lower TE wave cutoff frequency and raise TM wave cutoff frequency.

利用有限元方法系统地研究了机车、罐笼、金属支护立柱等长列金属物体对井下规则隧道中电磁波截止频率的影响，可知长列金属物体的存在使TE波模截止频率降低，而使TM波模截止频率升高。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷