平面把

A mathematics model of comprehensive security control is formed by taking the total cost of control actions as the objective function and taking inequalities of hyperplanes as transient stability restrictions, and a optimization strategy called "the active restriction relaxation approach" is proposed which can classifies the contingency sets into two subsets.

以综合控制总成本为目标函数，以超平面形式的不等式为暂态稳定约束，该方法把安全性综合控制问题归结成了一个最优化问题。

In order to solvepiecewise algebraic varieties, we propose a new method to compute an algebraic varietyon a convex polyhedron by adding hyperplanes with the method of Groebner bases. Thus,the algebraic variety on the convex polyhedron is transformed to the positive solutionsof a system of polynomials. Besides, the minimal decomposition is also obtained.

通过添加超平面技巧将Groebner基方法应用到凸多面体内任意维代数簇的计算上，从而把凸多面体内的代数簇转化为另外一组多项式方程组的正解，并且得到了该代数簇在凸多面体内的极小分解。

To determine how extreme the distortion is, you can''t simply add up the values above and below the "ideal" plane and calculate the arithmetic mean.

要确定畸变的极端程度，您不能简单地把在"理想的"平面上下的值相加，并计算算术平均数。

The basic idea is as follows: first, a kind of plane α-B-spline interpolation curve with a shape control parameter a is constructed; then, by converting the first derivatives of the curve into Bernstein polynomial, the positive conditions of Bernstein polynomial can be used to get the necessary and sufficie nt conditions for the monotonicity of α-B-spline interpolation curves, i.e., the range of the parameter a. Therefore, monotone-preserving interpolating curves can be obtained succinctly.

其基本思想是：首先构造带有形状可调参数的一类平面(-B样条插值曲线，再把其一阶导矢的两个分量分别转化为Bernstein多项式，从而利用Bernstein多项式的正性条件，得到此曲线为单调的充要条件，即形状参数的取值范围，简单、快捷地实现此参数样条曲线的保单调插值。

Two rules joined together as adjustable arms used to measure or draw angles of any size or to fix a surface at an angle.Also called In this sense, also called bevel square

斜角规：组合在一起作为可调节臂的两把刻度尺，用以测量或描划任意大小的角或以某一角度固定一平面也作在此意义上也可称作 bevel square

One way of doing this is by the way of graphic designs that you put into your site.

一个方法是利用平面设计的方式，你把你的地盘变成。

However,the overflow of expenditure culture in postindustrial society makes the rich and heavy's Bohemia trend as complanation of commonplace world's requiem,which performs merchandise beanfeast-a signal of expenditure time.

然而，后工业社会消费文化的泛滥，把丰富厚重的波希米亚潮流平面化为一场庸常世界的安魂曲，上演出一出消费时代符号——商品的狂欢盛宴。

However, the concept of the angle between a line and a plane is new to them, and it might be a challenge for them to convert the angle into its complementary angle that is easier to be found out.

但是直线与平面的夹角是个新概念，而要把它转化成其余角来求对于学生是有挑战性的。

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。

What is the probability that the intersectingof two lines belongs to K? Finally, in this paper, we introduce the concept of double chord-power integrals ofa convex body in R~3, and some properties of double chord-power integrals of a convex body in R~3 are got.

最后，本文通过弦幂积分的理论体系和已经得到的平面上双弦幂积分的概念和性质，把双弦幂积分的概念推广到R~3上，得到了R~3上双弦幂积分的一些性质和结论。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了