epicycle

美 ['ep??sa?k?l] 　英 ['ep?sa?kl]

• n.【天】本輪；【數(shù)】周轉(zhuǎn)圓
• 網(wǎng)絡(luò)亞旋回；間升期；小循環(huán)

詞形變化

復(fù)數(shù)：epicycles  

英漢解釋

n.	1. 【天】本輪 2. 【數(shù)】周轉(zhuǎn)圓

英英解釋

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.

金星亦有盈虧，證明它必定是環(huán)繞太陽運(yùn)行，而不是均輪的中心。