Hence it is proposed that the temperature and the density of electrons in a richcluster and the Hubble constant H0 may be determined from the observations of the IR-background distortion.
因此，通过对畸变的观测，可以确定富星系团内电子的密度和温度以及哈勃常数h_0。
2
In the remote southern seas there is a cluster of islands. The weather is fair, the land is fertile and the ocean is rich with fish.
在遥远的南海有一群岛屿，这里天气不错，土地肥沃，海里尽是鱼儿。
3
There is a phenomenon that resource-based enterprises cluster in the area which is rich in resources.