a line generated by a point on a circle rolling around another circle
例句
A circle whose circumference rolls along the circumference of a fixed circle,thereby generating an epicycloid or a hypocycloid. 周转圆一个围绕着另一个固定圆周长滚动的圆,从而产生圆外旋轮线或圆内旋轮线,即外摆线或内摆线
Construct rotating nephroid and three-cusped epicycloid while remaining orthogonal to each other. 作旋转的肾脏线和旋转的三瓣外摆线,且彼此维持正交。
The envelope of moving line on the hypocycloid plane may be an epicycloid or cardioid and the... 摆线逆运动中与动切线成定角的直线;其包络也是圆周渐开线.
Priciples of cutting epicycloid bevel gear by continuous indexing method are investigated systematically. 对摆线齿锥齿轮连续分类法铣齿原理进行了系统研究。
A circle whose circumference rolls along the circumference of a fixed circle, thereby generating an epicycloid or a hypocycloid. 周转圆一个围绕着另一个固定圆周长滚动的圆,从而产生圆外旋轮线或圆内旋轮线,即外摆线或内摆线
General epicycloid circular arc spur gear 普通外摆线圆弧直齿轮