入射的

An advanced numerical analysis indicates that two coaxial hyperbolic secant beams, provided that they satisfy the functional relations of FWHM with amplitudes of this type of PVSS, will be very close to solitons when they propagate in PV crystals.

进一步的数值模拟结果表明，当入射双曲正割光束满足复色光伏孤子半高宽与中心光强的关系时，双曲正割光束在晶体中的传播就非常接近孤子，表明复色光伏孤子对于小的微扰是稳定的。

And the sun at high noon rests on the roof of my impenetrably dark forest

薄雾从可爱的山谷中袅袅升起，萦绕着我，正午的太阳在我那不透光的阴暗的森林树梢上休息，只有一束光线偷偷地射入里面的避难所，我躺在高高的草丛中，旁边的小溪倾流而下

Hence, based on acoustic potential function and boundary condition on solid interface, we get reflection coefficient and refraction coefficient of longitudinal wave and transverse wave on solid-solid interface, and provide approximate formula of the reflection coefficient and the refraction coefficient about the first critical angle of incidence. We analyze relation between the refraction coefficient and acoustic impedance.

为此，基于固体介质的声势函数和界面的边界条件，推导了固-固界面纵横波的反射系数和透射系数，以及第一临界角入射情况下反射系数和透射系数的近似公式，并且分析了透射系数与声阻抗之间的关系。

Three factors of restraining speckle noise in detection system, coherence ,phase difference and polarization of the incident ray,were analyzed in detail, and the relations between these factors and speckle contrast were also presented.

对采用激光照明的测量系统中散斑形成的三个重要因素，即入射光束的相干性、相位差和偏振特性进行了详细的理论分析，并给出了这些因素与散斑对比度的变化关系。

This method also allow us to select the most efficient way from the bulk optical systems and available recoding methods, i.e., identifying the space bandwidth product of the input signal, the minimum size of lens apertures, the sample space and total sample number of CCD and spatial light modulator, the need of magnification before the signal passes through a SLM or when the signal reaches the camera.

通过该方法可以确定合适的加密系统和光学器件，例如输入信号的空间带宽积、变换透镜的最小孔径、空间光调制器的分辨率和像素大小、CCD的分辨率和像素大小以及入射到空间光调制器和CCD靶面上光场所需的放大倍数。

Then based on the results, the characteristics of radar stealth of a naval vessel were analyzed.

建立以某舰船为参照的艏向与正横向的近似二维模型，基于二维时域有限差分法计算舰船的艏向与正横向在不同频率入射波情况下的雷达散射截面，并根据计算结果对某舰船的雷达隐身特性进行分析。

Comparing some coefficients by complex images method with that by analytical formula or numerical quadrature, the computing method of the model is examined to be efficient and accurate.

通过计算考察基于复像方法的有关系数证明了该模型的准确性，并给出了不同入射方向的界面上刚性球体和弹性球壳的散射声场算例，对目标散射幅度的分布以及随角度的变化规律做了分析。

This paper analyses how the electricity vector orientation of the normal incidence plane polarized light or garden polarization light is altered by quarter wave plate by making use of Jones matrix of polarizer.

用坐标变换法解出偏振器件一般情况下的Jones矩阵，利用偏振器件的Jones矩阵分析四分之一波片对正入射平面偏振光和园偏振光的偏振态的改变，指出获得和判断椭园和园偏振光的方法。

On the base of the modified acousto-optic interaction relationship and the working principle of AOTF, some important contents in the design of noncollinear AOTF, such as the selection of the optimum incident polar angle and the image resolution have been discussed. An integrated method of designing the noncollinear AOTF has been established.

以改进的声光作用关系为基础，依据声光可调滤波器的工作原理，讨论了最佳入射光极角的选择和成像分辨率等非共线声光可调滤波器设计的重要环节，从而建立了一套完整的非共线声光可调滤波器的设计方法。

The momentum and polar angle depended position resolution and hit efficiency in each layer of BESmuon detector are calibrated by using cosmic ray and hadron samples.

北京谱仪Ⅱ的μ探测器的位置分辨和击中效率与带电粒子的动量和入射位置有关，利用选取的宇宙线样本和强子样本对μ探测器逐层进行了标度，并利用构造的效率比函数在物理分析中有效地识别μ和强子

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