查询词典 geometry

For the single way filament winding of a cone structure , the corresponding mathematics model and winding pattern for four axes winding machine were derived by using space analytic geometry.

本文对锥体结构的单向纤维缠绕，应用空间解析几何的知识建立了相应的数学模型，并建立了在相应于四轴缠绕机上的缠绕线型，同时利用VB6。

And then the sliding mode motion characteristic was analyzed by using (nth- dimension space) analytic geometry and variable structure control theories.

即使某些变结构控制系统理论上可以求得解析解，实际求解过程也相当烦琐和困难。

The research fields are calculus of single variables functions and several variables functions, space analytic geometry, series, differential equation.

通过本课程的学习，使学生掌握一元函数微积分、向量代数和空间解析几何、多元函数微积分、无究级数、常微分方程等方面的基本概念、基本理论和基本运算技能，为学习后继课程和进一步获得数学知识奠定必要的数学基础。

Comparing the advantages and disadvantages between computer drafting and manual drafting, as well as the drafting of some common figures of curre and curred surface are by three common diagrams of space analytic geometry in advanced mathematics for the purpose of more accurate and perfect drafting.

用高等数学教科书中空间解析几何3个常用图例对计算机与手工绘图的优劣进行比较，并论述了如何用计算机绘制空间解析几何中一些常用曲面及曲线图形，从而使图形更精确、完善的问题。

Comprehensively making use of the basic theory, such as Space Analytic Geometry, Gear Meshing Engagement Theory, Method of Mathematical Calculation, Theory for Error Analyzing and Data Processing, the author has established the mathematical models of the new method, which has included the analytic mathematical model for precision orientation, the mathematical model for the ball's diameter and the measuring diameter, the mathematical model about the ball's centre, the calculation model for tooth alignment diviations and the model for tooth alignment error evaluation.

本文综合应用空间解析几何学、啮合原理、计算方法、误差理论与数据处理等有关基础理论，推导建立了新方法的数学模型，包括：确定定位关系的解析法数学模型，测球直径与测量半径的数学模型，测球球心的数学模型，齿向偏差的计算模型以及齿向误差的评定数学模型等。

Its primary coverage includes: Function and limit, derivative and differential, theorem of mean and derivative application, indefinite integral, definite integral and application, space analytic geometry and vector algebra, function of many variables differential method and application, multiple integral and curvilinear integral, infinite series, differential equation and so on.

其主要内容有：函数与极限，导数与微分，中值定理与导数应用，不定积分，定积分及其应用，空间解析几何与矢量代数，多元函数的微分法及其应用，重积分与曲线积分，无穷级数，微分方程等。

With the publication of the Dai Wei Ji Shi Ji, a translation of Loomis' textbook Elements of Analytical Geometry and of the Differential and Integral Calculus (1851), in 1859, the differential and integral calculus was introduced into China.

19世纪后期是中国数学由传统向近现代转化的一个重要时期，微积分是近代数学乃至大部分自然科学的最基础的理论，这个理论是从1859年出版的译著《代微积拾级》中介绍到中国来的。

Therefore, it took a long period for calculus, analytical geometry and algebra to take root in China.

对晚清数学家来说，面临着新的机遇，同时存在着巨大的挑战和困惑。

He is accredited as the father of analytical geometry.

他被公认为解析几何之父。

When solving the problems of analytical geometry ,we commonly transfer it into algebra form and then solve it .

解有关解析几何的题目，一般都是转化为代数的形式，然后再进行解答。

Must have Coordination and negotiation skill, flexible ideas, and be punctilious person.

必须具备较好的协调与谈判能力，头脑灵活，工作认真仔细

Result: 18 patients are all with simple eye.The pigment mole lies in nasal and temple sides of the ball conjunctiva,in which 2 lie in lacrimal caruncle and semilunar plica.

结果：18例患者均为单眼，色素痣大多数位于内外侧睑裂部球结膜面，2例位于泪阜及半月皱襞，经激光治疗后，10例色素痣消失，有5例行再次激光后消失，2例行第三次激光后消失，1例第四次激光后消失。