Warning: file_put_contents(): Only 0 of 7312 bytes written, possibly out of free disk space in /www/wwwroot/ndsq.cn/index.php on line 55 celestial equator英英字典_celestial equator剑桥英语解释_celestial equator柯林斯英文解释_开心英文字典_柠咚词
1. N the great circle lying on the celestial sphere the plane of which is perpendicular to the line joining the north and south celestial poles 天赤道 (Also called equinoctial, equinoctial circle)