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In this paper, the differential astigmatic detection method for defocus measurement with one-way defocused detector is developed from the conventional differential astigmatic detection.

本文在传统差动像散检测方法基础上，给出一种基于单向离焦的差动像散检测方法。

The originalities of this dissertation are as follows:(1) Based on astigmatic method, a new 3-D profile parallel detecting method is proposed.

该检测方法利用微透镜阵列和像散元件构成并行像散光路，实现了对测量表面的全场同步检测。

In the principle of mode matching and astigmatic compensation, the dynamic characteristics of the three mirror folded cavity and the astigmatism factors are analyzed through ABCD transfer matrix.

利用ABCD传输矩阵，在模式匹配以及像散补偿的原则下，对于折叠腔的动态特性以及像散因素进行了分析。

In this paper, we research the imaging problems beneath volcanic area. We sort common asymptotic conversion point gathers and perform velocity analysis to establish the initial velocity which will be used in PSTM. By scanning migration velocity and V p/ V s, we get the optimum migration velocity and

本文针对火山岩地震屏蔽层的转换波成像问题，通过对转换波共近似转换点道集进行速度分析，建立了转换波叠前时间偏移的初始速度场，通过速度扫描和纵、横波速度比值扫描确定最佳的偏移速度场和纵、横波速度比值，实现了在火山岩高速层覆盖区域的转换波偏移成像。

The application of an appropriate apodization film to an ordinary lens makes the point amplitude response asymptotic to a Dirac-delta function, or causes an arbitrarily narrow depth of focus. This implicates that we may achieve lateral or axial superresolution through implementing an apodization film.

运用适当形式的光瞳滤波器可以改变成像系统点振幅响应的分布，使其具有类似于冲击函数(Dirac-delta函数)的形式，这样就有可能实现光学超分辨，但变迹术的运用往往会因其强烈的旁瓣效应而导致成像系统对比度的急剧下降。

In order to analyze the general astigmatism of laser resonator cavities, the general analytical formula of misalignment sensitivity for complex astigmatic resonator cavities with several optical components has been derived by adopting augmented 8×8 misaligned matrix and symbol operation functions of MATLAB.

为了分析激光谐振腔的一般复杂像散特性，采用了8×8失调增广矩阵和MATLAB的符号运算的方法，推导出了复杂像散腔失调灵敏度的一般解析表达式。

Shanghai, such a remarkable place, sometimes makes you feel that there are many small nations within it. Just like in Europe, it seems all people are the same at first glance, but when you look at them closely, you will see the seriousness of the German, the romance of the French and austereness of the Poles. People living in different parts of Shanghai also look differently.

这样，上海这地方，有时让人感到像里面还有许多小国家一样，就像欧洲，人看上去都是一样的人，仔细地看，就看出了德国人的板，法国人的媚，波兰人的苦，住在上海不同地域的人，也有着不同的脸相。

Everything that comes out of me is authentically me.

有些人有部份像我，但没有一个人完全像我。

The main idea of this article is how to improve the resolution and precision of photoelectric Autocollimator, contains next aspects: 1, How to improve the resolution of imaging apparatus with Cubic Spline Interpolation Functions.

本文针对如何提高光电自准直仪的分辨率及精度进行研究，研究内容表现在以下几方面： 1、将三次样条插值应用到成像器件的细分中，提高自准直仪成像器件的分辨率。

As a key technology in digital imaging system, autofocus plays an important role in terms of improving performance of digital imaging products.

作为数字成像系统的关键技术之一，自动对焦技术对于提升我国数字成像产品的竞争力具有十分重要的作用。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。