Astronomy. Either of the points at which two great circles of the celestial sphere intersect each other, esp. a point where the apparent path of…
| 单词 | θ420 |
| 释义 | the world > the universe > planet > planetary movement > [noun] > orbit > node (1) node1652 Astronomy. Either of the points at which two great circles of the celestial sphere intersect each other, esp. a point where the apparent path of… |
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