查询词典 enumerative geometry

In Chapter 5, in geometric perspectives, the geometric properties of complex numbers are explored, including complex plane, four arithmetic operations of complex numbers and nth root of a complex number. It is also exemplified how these geometric properties are applied to solving the problems of plane geometry.

第五章从几何的观点探索复数的几何性质，包括复数平面、复数的四则运算及复数的n次方根，并举出几个例子，说明这些几何性质如何应用在解决平面几何的问题上。

As the example, robot mechanism is considered, including the topology graph representation. compotation of the mathematical model. This method based on Riemann geometry with simpler formulation is more suitable for computer-aided modeling and dynamic analysis.

讨论了机器人系统的拓扑图表示和动力学模型计算等，与已有的机器人动力学分析办法相比，基于黎曼几何和拓扑图表示方法的动力学分析更加简便，更加适合机器人动力学机械化建模。

In this paper a new error resilient method based on abject geometry is presented to deal with errors in compressed video sequences.

针对压缩视频流中的误码，提出了一种新颖的基于对象几何形状的视频抗误码方法。

With the rapid development of the computer theory and technology, the application of computational geometry is more and more attention to.

随着计算机理论和技术的飞速发展，计算几何的应用越来越受到人们的重视。

It, as a basic step in many algorithms, is also an important part in computational geometry.

它也是计算几何的重要内容之一，是许多其它算法的基础。

Before discussing Xing Yunlu's calendrical work, we reviewed the calendrical system of the Ming Dynasty and the status of the calendar crisis and the endeavor of reviving the traditional calendar made by the scholars Gu Yingxiang (1483-1565), Tang Shunzhi (1507-1560) and Zhou Shuxue (?1500-?1572) during the Emperor Jia Jing (1522-1566) in the Ming Dynasty. These scholars had paid attention to the underlying mathematical principles of Shoushi Computus, especially the method on arc and arrow in the geometry.

在讨论邢云路的改历活动之前，首先对明代的历法系统以及传统历法出现危机的状况以及明代嘉靖年间顾应祥(1483-1565)、唐顺之(1507-1560)、周述学(约1500-约1572)等复兴传统历法的努力进行讨论，指出：明代嘉靖年间学者的改历理念主要是注重讨论被钦天监历官忽视的《授时历》的立法原理问题，并对《授时历》弧矢术做了一些有益的探求工作。

I had been sitting in geometry class for two hours, waiting for the professor to conclude his lecture about concentric circles and concaved figures.

我已经上了两个小时的几何课，一直等着教授结束这个关于同心圆和凹面图的讲座。

The concept of stationary P, N, and p charge regions with a simple dipole geometry is an oversimplification of the actual electrical structure of a thunderstorm.

表现为简单偶极子分布的固定P，N和p电荷区概念只是雷暴云中真实电场结构中极为简化的描述。

In this paper,a optimization method of naval gun weapon system performance is presented based on the polynomial mode of power index method and the solution s concision geometry programming method.

简要介绍了评价舰炮武器系统性能的幂指数法和一种特殊的非线性规划方法——几何规划方法。

The similarity conditions of geometry, flow movement and dynamics of air bubbles are analyzed.

从气体运动状态方程出发，研究了竖井有压流动模型中气水两相流的运动规律，分析了气泡几何相似、运动相似以及动力相似的条件，指出掺气浓度相似律是研究气水两相流相似问题的又一必要条件，即原、模型的掺气浓度必须相等，前提为大气压强或密度相似。

The father that if work,mad father, love annoys, disposition is too indrawn the be short ofing that the father of Mu Ne, resign oneself to adversity causes father easily to love is broken; Communicate time effectively between father and son, Mu Zizhi to be less than a hour on average to wait a moment every week, it is the cause that causes the child to become addiction.

如工作狂的父亲、爱愤怒的父亲、性格过于内向木讷、逆来顺受的父亲都易造成父爱的缺失；父子、母子之间的有效沟通时间每周平均小于一小时等等，都是造成孩子成瘾的原因。

These are vandal proof and they come with a locking mechanism.

这是野蛮的证据，他们来到了锁机制。