查询词典 top circle

Thus, evaluation of the minimum zone circle could be solved effectively.Three methods of assessment of roundness error were proposed in this dissertation. Based on the criteria of the minimum zone circle, minimum circumscribed circle and maximum inscribed circle and convex hull, a unified approach was proposed to evaluate roundness error of the minimum zone circle, minimum circumscribed circle and maximum inscribed circle. Evaluation of the minimum zone circle, minimum circumscribed circle and maximum inscribed circle was fulfilled with rotation based the contact pattern. The minimum circumscribed circle and maximum inscribed circle were evaluated with curvature and the curvature circle.

本文提出了三种圆度误差评定的方法：根据最小区域圆、最小外接圆、最大内接圆在极坐标系下的判别准则，利用计算几何中的凸壳理论，提出了一种统一的评定方法，实现了对最小区域圆、最小外接圆、最大内接圆的误差评定；基于接触斑点的检验原理，利用旋转法，实现了最小区域圆、最小外接圆和最大内接圆的误差评定；利用曲率和曲率圆，实现了对最小外接圆和最大内接圆的误差评定。

First, this article introduced 2 grade of rotary kiln principle of work and the equipment, to rolled the circle mechanics behavior to carry on the analysis, proposed - rolled the circle - under roller's rotary kiln overall modelling based on the tube body - kiln liner - big tooth ring, to rolled the circle - under roller's contact stress to carry on the finite element analysis the method, and obtained rolled the circle contact stress the size and the distribution rule, finally indicated that rolled the circle contact stress mainly to have two main peak values and the sudden change in one week, appeared is rolling the circle and the under roller contact area; Then, rolls the circle the stress to regard as is the principal stress unknown plane stress test, the use quite mature modern test technology, proposed rolls the circle stress test the principle and the plan, and to rolled the circle the stress to carry on the scene test, the stress which the scene test analysis result and the finite element analysis calculated has compared, had proven the whole method modelling's finite element analysis method's rationality and rolled the circle - under roller contact stress the result accuracy; Finally, uses ANSYS APDL the re-development technology, in view of 2 grades of rotary kilns, rolled the circle - under roller contact stress the overall finite element analytic method to carry on the re-development.

首先，本文介绍了2档回转窑工作原理和装置，对滚圈的力学行为进行了分析，提出了基于筒体-窑衬-大齿圈-滚圈-托轮的回转窑整体建模，对滚圈-托轮的接触应力进行有限元分析的方法，并得到了滚圈接触应力的大小和分布规律，结果表明滚圈接触应力在一周内主要存在两个主要的峰值和突变，都出现在滚圈与托轮接触区域；然后，把滚圈的受力看成是主应力未知的平面应力的测试，利用比较成熟的现代测试技术，提出了滚圈应力测试的原理和方案，并对滚圈的应力进行了现场测试，现场测试分析结果与有限元分析计算出的应力相比较，证明了整体法建模的有限元分析方法的合理性和滚圈-托轮接触应力的结果的正确性；最后，利用ANSYS的APDL的二次开发技术，针对2档回转窑，就滚圈-托轮接触应力的整体有限元分析法进行了二次开发。

The relationship between the minimum zone circle, minimum circumscribed circle and maximum inscribed circle was studied. Based on their relationship, the minimum zone circle and minimum circumscribed circle, maximum inscribed circle were transformed mutually.

本文研究了最小区域圆与最小外接圆、最大内接圆特征点的相互关系，实现了最小区域圆与最小外接圆、最大内接圆的相互转化，可有效解决最小区域圆的误差评定。

Yangtze Delta Urban Economic Circle, Zhujiang Delta Urban Economic Circle, Beijing-Tianjin-Hebei Urban Economic Circle, Chengdu-Chongqing Urban Economic Circle, and Wuhan Urban Economic Circle are five important urban economic circles, among which, four economic circles except Wuhan Urban Economic Circle have club convergence phenomenon and this club convergence is greatly related to industrialization degree, inner economic structure and innovative ability of the five economic circles.

长江三角洲城市圈、珠江三角洲城市圈、京津冀城市圈、成渝城市圈、武汉城市圈是我国五个重要的城市圈；其中，除武汉城市圈外其他四个城市圈均存在不同程度的俱乐部趋同，而且这种趋同和五大城市圈的工业化程度、内部经济结构及创新能力有很大关系。

December 12, 2006 in Yanglin in support of the main ring began to run, followed by Circle in the sharp group blog Management Forum team support, advice and help, in the high mountains on being aware of small, Taoyuan Daisen, high quality, such as Cong-jie joined the circle of the Lord, in the main consisting of classic circle the tireless efforts of the management team, we were sharp double blog and Sina blog circle circle of outstanding performance -82 million in the 620,000 rise blog circle

去年的今日，在和群体文化交流的基础上，我们从横向的博圈交流向跨越网站的博客文化传播领域延伸，我和一群不怕争议不畏艰难的创新者大胆的尝试着，并以身体力行的榜样作用协同团队成功的组织了以下活动

France and Finland advertising business district, shopping district computer advertising, TV advertising business district, the film industry advertising business district, beautiful models circle, beautiful woman in the circle model, beauty girl model ring, beautiful ring girls, models, beauty model ring, ring cameraman, photography division ring; computer video advertising business district; Mobile:+0086-13901623260; Netherlands Montenegro Czech, Croatia and Latvia advertising business district, shopping district computer advertising, television advertising business district, the film industry advertising business district, beautiful models circle, beautiful woman in the circle model, beauty girl model ring, beautiful ring girls, models, beauty model ring, ring cameraman, photographers circle; computer video advertising business district; Mobile:+

北美洲广告商圈，电脑广告商圈，电视台广告商圈，电影界广告商圈，美女模特圈，美丽女人模特圈，美容姑娘模特圈，漂亮女孩模特圈，美人模特圈，摄像师圈，摄影师圈；电脑视频广告商圈；Mobile：+0086-13901623260；安提瓜和巴布达巴巴多斯巴哈马巴拿马伯利兹多米尼加多米尼克广告商圈，电脑广告商圈，电视台广告商圈，电影界广告商圈，美女模特圈，美丽女人模特圈，美容姑娘模特圈，漂亮女孩模特圈，美人模特圈，摄像师圈，摄影师圈；电脑视频广告商圈；Mobile：+

Based on the criteria of roundness error, the definition of the circumscribed circle and inscribed circle with the least roundness error was given. The solution to the circumscribed circle and inscribed circle with the least roundness error was proposed when they met with the criterion of obtuse triangle.

根据圆度误差评定的判别准则，给出具有最小误差的外接圆和内接圆的定义，并提出了解决具有最小误差的外接圆和内接圆满足钝角三角形准则时的误差评定方法。

BBS between the IM group and are mutually reinforcing relationship, BBS is a "loop group" convergence,"the circle", also formed a small "circle" small "circle" will do everything possible to become the largest "circle" The "high voice" characters.

IM群和BBS之间是相互促进的关系，BBS本身是"圈群"的聚合，大"圈子"里，又形成了小"圈子"，小"圈子"又会千方百计的成为这个大"圈子"的"高话语权"人物。

Circle the heart which moisten me of the way of sport circle circle of the circle my life.

圆圆的运动圆圆的道滋润我的心我的人生。

When we up-cast from a circle to a point, we do not change the state of the circle, When we up-cast from a circle to a point, we do not change the state of the circle

当我们从圆到点进行向上类型转换的时候，我们不会改变圆的状态，也就是说，虽然我们把一个圆的struct Circle结构看作是一个struct Point，我们却不改变其中的内容。

More direct, directer ; most direct, directest

径直的，笔直的

Do you know how to use a chain saw?

你知道如何使用链锯吗？