| 1. | For the moment let us describe the minor members that we are sure belong to the local group .
现在，我们来介绍一下明确属于本星系群的几个较小的成员星系。 |
| 2. | Normal matter in galaxy clusters is mostly in the form of hot gas and stars
星系群中的常态物质大概是由热气团和星团所组成的。 |
| 3. | Normal matter in galaxy clusters is mostly in the form of hot gas and stars
在星系群中正常物质大多数是由热气与星星所形成的。 |
| 4. | 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。 |
| 5. | A team of scientists observed a group of galaxies that formed when two galaxy clusters smashed into each other
一组科学家观察，当两个星系丛互相撞击，可形成一星系群。 |
| 6. | A team of scientists observed a group of galaxies that formed when two galaxy clusters smashed into each other
一组科学家观测到一个星系团，这个星系团形成于两个星系群的互相碰撞。 |
| 7. | To try to find out where this ring had come from the astronomers trawled through previous literature on the cluster in question
为了找出这个环从何而来，天文学家翻遍了以前记录可疑星系群的文学作品。 |
| 8. | The bullet cluster is more than three thousand million light - years away . it formed in the last one hundred million years
一组科学家观察到当两个星系群相互结合后形成一组星系。他们称之为“子弹丛” 。它包括子弹形状的热气烟云从一个较小的团变成较大的。 |
| 9. | By looking at how the faint light from galaxies behind the cluster they were studying was distorted by that cluster , dr jee and his team created a map of the distribution of its mass
通过观察他们研究的星系群中的星系发出的微弱的光线是如何被该星系群所扭曲，吉博士和他的团队创作出该星系群的质量分布图。 |
