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。
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。
Internal and External Common Tangent Circles of Three Circles Which Are Externally Tangent Each Other;
三个两两相外切圆的内公切圆与外公切圆
Area Formula of the Polygon of Inscribed or Circumscribed Ellipse;
椭圆内接(外切)多边形的面积公式
tangent circles
相切圆, 两个相切的圆
This company could help customers to import tissue logsaw, HSS sheeter knife from IKS Klingelnberg.
五、公司可代客户引进卫生纸、圆刀、速钢横切刀。
ground-working disk blade
切土圆盘刀，耕耘圆盘
Design of New Arc Angle Rotary Chip Breaker and Establishment of Practical Predicting Formula of Chip Fracture
新型圆弧角回转断屑器设计与切屑折断实用预报公式的建立
Tolerance of Wire Diameters & Ovality
圆径及偏圆度之公差
shoulder cutter
切割猪肩肉用的圆盘刀
filter-paper coated cut to circular shape
带涂层过滤纸,切成圆形
CNC oblique cutting cylindrical special grinding machine
数控斜切外圆专用磨床
equalizer Mercator chart
赤切圆柱正形投影海图
equal-angle transversal elliptic cylindrical projection
等角横切椭圆柱投影
rotary gang slitting
带材多刀圆盘剪纵剪切
A sapphire that was cut cabochon.
切削成凸圆形的蓝宝石
The line touches the circle.
这条线和这个圆相切。
plungecut semi-automatic cylindrical grinder
切入半自动外圆磨床
Peel the oranges, then slice into halves. Slice further into half-round pieces.
柳橙去皮，切两半，再横切半圆形片。
circumferential force
切线力, (沿着圆周作用的)切向力