galactic pole

例句：

1. 1. The galaxy is a vast collectionof stars and planets in the universe.
   银河系是宇宙中众多恒星和行星的集合。
2. 2. The galactic pole isthe point where the Milky Way galaxycrosses over into the Andromeda galaxy.
   银河极点是银河系穿过仙女座星系进入猎户座星系的点。
3. 3. The discovery of the galactic pole has helped scientists understand the structureof the universe.
   发现银河极点有助于科学家理解宇宙的结构。