hypocycloid

"hypocycloid" Chinese translation ("hypocycloid" in Chinese, "hypocycloid" 中文翻译, "hypocycloid"发音):

hypocycloid n. 『数』圆内旋轮线; 内摆线 adj. hypocycloidal [n. 『数』圆内旋轮线; 内摆线 adj. hypocycloidal ]