| 1. | Galaxies are held together by gravity to form clusters of galaxies
星系团是由星系因引力结集而成。 |
| 2. | Membership of cluster of galaxies
星系团成员 |
| 3. | Open cluster of galaxies
疏散星系团 |
| 4. | Proto - cluster of galaxies
原星系团 |
| 5. | Clusters of galaxies , in turn , are grouped in larger structures called superclusters
星系群再往上组成更大的结构称为超星系群。 |
| 6. | But we see mostly one large intervening cluster of galaxies , called the virgo cluster
但是我们只看到一团相互作用的星系，成为室女座星系团。 |
| 7. | For the mass of a typical cluster of galaxies , it happens at a few million light - years from the center
对于典型的星系团质量而言，转变处则离中心约数百万光年。 |
| 8. | On larger scales , analogous halos are thought to keep clusters of galaxies bound together
在更大的尺度上，有人相信，由于存在著类似的晕体，星系团才凝聚在一起。 |
| 9. | Im believed that the four heros are probably part of the same cluster of galaxies to which 53w002 belongs
Im相信，这四个hero可能与那个射电星系是在同一个星系团中。 |
| 10. | Some clusters of galaxies contain thousands of galaxies , and there are roughly 100 billion galaxies in the universe
星系一些群包含数以万计星系,并且有大致100十亿星系在宇宙。 |
