hypotrochoid的翻译，读音

英/,haipә'trәukɔid/

释义：

单词hypotrochoid书写

[机] 内转迹线
n. A curve, traced by a point in the radius, or radius
produced, of a circle which rolls upon the concave side of a fixed
circle. See Hypocycloid, Epicycloid, and Trochoid.

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