查询词典 wave front

Influence of beam turning error of pentagonal prism on wave-front measurement［J］.

五角棱镜的光束转向误差对波前测量的影响［J］。

It is shown that the atmosphere turbulence slows the downtrend of the twist parameter,gives rise the peak value of wave front curvature in the principal direction,degrades beam′s coherence and increases the spreading of beams.

根据有扭曲的各向导性高斯-谢尔模型光束在大气湍流中传播距离z处的部分相干复曲率张量给出了光束参量的表达式和详细的数值计算结果。

First, wavelet theory is used to reanalyze the Huygens-Fresnel principle, then an ideal of wave-front filtering is brought forward, the foundation of wavelet optics theory is thus established preliminarily.

首先用小波理论重新分析惠更斯-菲涅耳原理，并据此提出波前滤波思想，初步奠定了小波光学的理论基础。

And the results are checked in terms of motion's equations in time domain at joints and wave-front arriving time.

通过节点在时域中的力平衡条件和波前到达时间验证计算结果的正确性。

The damage effects of gas explosion on the structures in excavation roadway is to study some factors such as the overpressure in the shock wave front, the action time of shock time, the position of structures, the shape and so on. Through the discussion above, the study about the damage mechanism and damage effects on ventilation system can be put into theory research and practice.

瓦斯爆炸对构筑物的破坏效应是通过对冲击波阵面上超压、冲击波的作用时间及构筑物所处的位置、构筑物的形状等因素的研究进行的，而瓦斯爆炸的破坏机理和对通风系统破坏效应方面的研究不但可以加深理论而且还可以应用于实践。

On the base of the theory, phenomenon of optical diffraction from a single slit, round aperture, grating, and so on are analyzed according to the ideal of wave-front filtering.

在此理论基础上，根据波前滤波思想，对单缝、圆屏、光栅等衍射现象进行了分析；同时也分析了空域滤波、空频域滤波、光学成像系统。

The main aim of this paper is to deal with location measurement of modal zero travelling wave front.

主要讨论了解决零模行波波头定位的问题。

The wave front and the intensity pattern of the simplest Laguerre Gauss or doughnut mode.

最基本的 LG和暗中空模式的波前和强度图形。

All the seven order ocular aberrations are measured with the aberrometer. The ocular aberrations are described with Zernike polynomials, two-dimensional and three-dimensional wave-front aberration maps.

该像差仪能测量出人眼的全部七阶像差，采用Zernike多项式、两维和三维波前像差图对人眼像差进行了描述，给出了计算各项波前像差的均方根的公式。

SBS partial phase-conjugate compensating phenomenon has been researched experimentally.The difference between single-transverse-mode laser SBS and wave-front-distorted laser SBS were analyzed illustratively.

通过实验观察了受激布里渊散射相位共轭波前补偿现象，分析了单横模激光、波前弱畸变及强畸变激光受激布里渊散射现象的差异。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。