epitrochoid
[机] 外转轴线
发音
US
词形变化
epitrochoids
复数
epitrochoids
释义与例句
n.
-
1.
A geometric curve traced by a fixed point on one circle which rotates around the perimeter of another circle. Examples include the shape of the Wankel engine
外旋轮线
词源
From epi- + trochoid.
来源：wiktionary