1. all of the planets rotate the sun in approximately the same ecliptic. 
   古代中国人做大事都要挑一个黄道吉日。
2. the point at which an orbit crosses the ecliptic plane going north. 
   天体往北运行时经过的交点。
3. the point at which an orbit crosses the ecliptic plane going south. 
   天体往南运行时经过的交点。
4. The angular distance of a celestial body north or south of the ecliptic. 
   黄纬黄道以南或以北天体的用角度量的距离
5. (astronomy) either of the two celestial points at which the celestial equator intersects the ecliptic. 
   在天球上天赤道与黄道相切的两点中的任一点。

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