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1)  common tangent circle
公切圆
1.
We put forward in this article the method of applying common tangent circle drawing to draw ellipses.
提出应用公切圆法画椭圆,可不必推平行线和多次加长圆规,只需用直线尺作图,且理论上误差为零。
2)  internal common tangent circle
内公切圆
3)  external common tangent circle
外公切圆
1.
The center and radius of the internal and external common tangent circles of three ones which are externally tangent each other are obtained under the suitable rectangular coordinates system,then the fine relation types between the radiuses are obtained.
在适当的直角坐标系下求出了三个两两相外切圆的内公切圆与外公切圆之圆心坐标和半径,并得到了诸半径之间的优美关系式。
4)  common tangent of two circles
二圆公切线
5)  double-tangent arc algorithm
公切圆弧算法
1.
Considering the double-lines figure and characteristics, double-tangent arc algorithm assuring the curve s equidistant.
关键词:中心采样点;等距曲线;光滑曲线;公切圆弧算
6)  tangential circle
切圆
1.
The deeply study of the arithmetic of drawing manifold tangent& tangential circle in YH-Wire-Cut programming system;
YH自动编程系统多切圆线智能设计算法深入研究
补充资料:赠圆昉公
【诗文】:
天阶让紫衣,冷格鹤犹卑。道胜嫌名出,身闲觉老迟。
晓香延宿火,寒磬度高枝。每说长松寺,他年与我期。



【注释】:



【出处】:
全唐诗:卷632-17
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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