🔄epicycle (外行星环)

noun
/ˈɛpɪˌsaɪkl/
外行星环 (wài xíngxīng huán)

含义

a small circle whose center moves around the circumference of a larger one, used in ancient astronomy
含义翻译
一个小圆圈,它的中心绕着更大的圆圈的圆周运动
yī gè xiǎo yuánquān, tā de zhōngxīn rào zhe gèng dà de yuánquān de yuánzhōu yùndòng

例句

The concept of the epicycle was used to explain planetary motion.

外行星环的概念被用来解释行星的运动。
wài xíngxīng huán de gàiniàn bèi yòng lái jiěshì xíngxīng de yùndòng.

同义词

orbit, circle, revolution, rotation

反义词

line, straight path

搭配词

planetary epicycle, motion epicycle, Ptolemaic epicycle

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