epicycle

epicycle

美 ['epəˌsaɪkəl] 　英 ['epɪsaɪkl]

• n.【天】本轮；【数】周转圆
• 网络亚旋回；间升期；小循环

词形变化

复数：epicycles  

英汉解释

n.	1. 【天】本轮 2. 【数】周转圆

英英解释

n.	1. in the Ptolemaic theory of the solar system, a circle that is followed by a planet, the circle itself being centered on a larger circle within which is the Earth. 2. a circle that rolls around the circumference of another circle, either inside or outside

例句

Venus goes through a full set of phases, proving that it must orbit around the Sun, not the center of the epicycle.

金星亦有盈亏，证明它必定是环绕太阳运行，而不是均轮的中心。