外旋轮线

他研究了摆线、圆外旋轮线和四点圆的旋轮线的几何性质。

He investigates geometrical properties of cycloids , epicycloids , and hypocycloids .

双弧外旋轮线工作室曲球打法又叫弧线球。

Two-lobed epitrochoidal working chamber The curve ball is also called arc line ball .

行星的视运动与圆外旋轮线

Apparent motion of planets and exterior trochoid

双弧外旋轮线旋转机械

Two-lobed epitrochoid rotary mechanism

湿部：长网造纸机上的网部和压榨部的总称。双弧长短幅外旋轮线气缸

Wet-end : The Fourdrinier wire section and the pressing section of a papermaking machine . two-lobe epitrochoidal bore

给出了视运动的运动方程，证明了行星视运动的轨迹为圆外旋轮线。

Equation of the relative motion is derived . It is proved that the apparent trajectories are exterior trochoids .

笔者在文中讨论了三角活塞发动机的缸体型线（双弧长短幅外旋轮线）和活塞周面曲线的创成；并提出了设计所需的计算方法。

This paper discusses the creation of the cylinder and the piston curved-line in Wankel engine , and calculating method in design .