查询词典 hyperbolic orbit

By contrast, it is proved more superior that the spline curve is used to match hyperbolic line instead of arc, and the problem about drawing of hex nut is solved in AutoCAD which was adopted in textbook of engineering drawings.

解决了工程制图中螺母近似画法在AutoCAD中应用时出现多线相交的问题，从而可以在符合实物投影的基础上形成一个比较好的统一改进近似画法规范。

A new one dimensional optical orthogonal codes(1 D OOC) named extended hyperbolic line congruence codes is constructed,and its performance is analyzed.

构造了一种扩展的双曲线性同余码并分析了其码字性能。

Using the characteristic line theory of hyperbolic partial differential equations,relations between the reflected signals and the dielectric parameters of the stratified media are analyzed.

提要 本文根据双曲型偏微分方程的特征线理论分析了分层媒质参数与时域反射信号的因果关系，研究了基于时域反射数据的分层媒质的参数反演的离散化模型。

The similar drawing of the hyperbolic line is argument according to my experience with teaching, which is on the head surfaces of hex nut and used in the engineering drawings, through building three-dimensional model in AutoCAD.

本文通过在AutoCAD中建立三维虚拟对比模型，探讨了工程图样中六角螺母和六角螺栓头部外表面双曲线在计算机辅助设计中的近似画法问题。通过对比，论证了样条曲线替代圆弧近似双曲线改进画法在计算机绘图中的合理性和优越性。

Optical orthogonal codes; Optical code division multiple access; Prime sequences ; Hyperbolic line congruence code

光码分多址；二维光正交码；素数码；双曲线性同余码

In this chapter, based on six integral of hyperbolic motion, we gave the analytical solution for the satellite's motion perturbed by the oblateness of the primary and numerical examples were also given to prove the accuracy.

文中给出了无摄情况下双曲线轨道的基本关系式，受摄情况下双曲线运动对应的摄动运动方程，以及在目标天体扁率摄动影响下双曲线轨道变化的分析解。

He believes the form he is holding is a hyperbolic paraboloid, a shape well known to mathematicians - or something very close to that - but he wants to be able to prove this conjecture.

他相信他手中的摺纸形式是一种数学家所熟知的双曲线抛物面，或是某种非常接近的形式，於是他想要验证此推测。

The authors show that the hyperboloid of one sheet and the hyperbolic paraboloid are ruled surfaces.

作者证实：单叶双曲面和双曲抛物面是直线曲面。

This can be a least-squares plane or a plane passing through the center of gravity of the corners and is parallel to the mid-rulings of the hyperbolic paraboloid determined by the corners.

这可以是一个最小平方平面或者是一个通过拐角的重心并且平行于由拐点决定的双曲线抛物面的半轴的平面。

On the basis of these theories, The specific project—the hyperbolic paraboloid shell structure named Shijingshan Gymnasium is introduced, and the finite element model is established, including calculation of load, simplification of node nature and simplification of support.

在这些理论的基础上，引入工程实例——石景山体育馆双曲抛物面网壳结构，建立有限元模型，包括使用荷载的计算、节点性质的简化、支承的简化等。

He's a pretty westernised kind of guy.

他是一个非常西化的人。

National spirit is the moral kingpin for a nation to realize common ideal and goal.

一、中华民族精神的基本内涵党的十六大报告指出：在五千多年的发展中，中华民族形成了以爱国主义为核心的团结统一、爱好和平、勤劳勇敢、自强不息的伟大民族精神。