1) circumscribed cylinder
外切圆柱
2) barrel pin
圆柱，外壳
3) circumscribed prism
外切棱柱
4) OD slicing
外圆切割
5) 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。
6) external cutting
外圆切削
补充资料：圆柱
Image:11616800563947865.jpg
圆柱
以矩形的一条边为轴旋转３６０°所得的几何体就是圆柱。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。