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In this paper four non-spherical surface types have been chose, ellipsoid surface, parabolic surface, pointed arch surface and conical surface. Base on the best fineness ratio, four surfaces are modeled, and their properties are analyzed in detail.

本文选择椭球面、抛物面、尖拱面、圆锥面这四种非球面面型整流罩，在基于整流罩最优的长径比的基础下，对各种情况分别进行建模，并对其光学性能进行了详细分析。

Chapter 1 briefs the relation between invariance and computer vision and summarizes the research and application of invariance in computer vision. Chapter 2 first derives the transformations of three camera models, then makes the correpondences between the models and three typical geometrical transformation groups by analysing the transformations respectively. The correspondences supply the theoretical basis for applying geometrical invariants to resolve the problems of computer vision. In Chapter 3, we describe the geometrical invariant theory and prove some geometrical invariants of coplanar points, lines or conics by algebraic method. In order to use the invariants of conic pairs to describe general 2D shapes, we discuss the perspectively invariant representation of planar curves using conies in detail. A system consisted of two TMS320C25 and based on moment invariants is introduced in Chapter 5. The system can recognize more than 30 different shapes of object model or more than 10 plane models with similar shape in real time.

第一章简述了不变性与计算机视觉的关系，以及计算机视觉中的不变性研究和应用概况；第二章推导了计算机视觉中常用三种投影模型的变换关系，通过对这三种变换关系的分析，分别建立了这三种投影模型和几何学中的三种变换群之间的一一对应关系，为几何不变性在计算机视觉中的应用提供了理论基础；在第三章中，我们介绍了几何不变性的理论，并且用代数方法证明了共面点、直线、二次曲线的几何不变量和射影不变量；为了把二次曲线的不变量用于一般二维形状描述，在第四章中我们详细地讨论了用二次曲线实现一般平面曲线的透视不变性表示的方法；第五章介绍了用两片TMS320C25构成的、基于不变矩形特征的运动目标实时识别系统。

Preamble of the optical phase conjugation of the background and significance of topics and papers done on the contents in detail.

前言部分对光学相位共轭的选题背景和意义以及论文内容安排做了详细的阐述。

When viewing the same material with a component video connection, borders were softer and detail less crisp, but there was not as much noise.

当观看了分量视频连接相同的材料，质地较软，边界是不清晰的细节，但有不一样的噪音。

The conning tower, note the heavy molded detail and I think the long stanchion on the back is where they poured the stuff in the mold.

该指挥塔，请注意沉重的塑造和细节，我认为，只要stanchion在背部，是他们倾注了东西在模具。

He does not have any connotative detail, his head is glabrous, his skin is diaphanous, it is the essence of a man.

被表现为个体的男人没有细节，他没有头发，皮肤是光滑的，只具有人的基本特征。

In this paper, it includes several parts as follows: Based on the conservation laws of mass and momentum equilibrium in transient liquid pipe flow, the basic equations are introduced in detail.

本文主要从以下几个方面进行了研究：从连续介质理论的质量守恒和动量守恒原理出发，介绍液体管道瞬变分析的基本方程组即波动方程组的详细推导过程。

Law of conservation of mechanical energy obeys the relativity principle of mechanics;2. An article in elsewhere censuring papers published in this journal is replied, discussing in detail the relation between the law of conservation of mechanical energy and the mechanical relativity.

详细阐述了机械能守恒定律成立的条件及该定律服从力学相对性原理所需满足的条件，回答了《河北师范学院学报》在1997年第2期上赵佩章等同志对本刊多年来所发表的有关文章的批评。

Our attention to detail is what makes us special and one of Britain's leading conservatory companies.

我们注重的细节是那些使我们特殊而且成为英国主要的受保护的公司之一的因素。

Every detail of the restaurant represents the restaurant's respect to clients, and every service embodies the restaurant's considerateness to clients.

餐厅的每个细节，体现了商家对客户的尊敬，每一项服务体现了商家对客人的体贴。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。