| 单词 | celestial equator |
| 释义 | celestial equator celestial equator n.（名词）A great circle on the celestial sphere in the same plane as the earth's equator.Also called equinoctial ,equinoctial circle 天赤道：环绕球形天体与地球类似的大圆也作 equinoctial,equinoctial circle |
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