| 1. | From the extent of the red shifts the recession velocities can be computed .
从红移量可以计算退行速度。 |
| 2. | Having a recession velocity greater than the speed of light does not violate special relativity
具有比光速快的远离速度，并没有违反狭义相对论。 |
| 3. | That history is encoded in the relation between the distances and recession velocities of galaxies
而这段历史就潜藏在星系的距离和其远离速率的关系当中。 |
| 4. | The velocity in hubble ' s law is a recession velocity caused by the expansion of space , not a motion through space
而哈伯定律中所谓的速度，是由空间膨胀所导致的远离速度，并不是在空间中的运动。 |
| 5. | Astronomers can deduce the recession velocity of a supernova by measuring the redshift of the light from the galaxy in which it lies
天文学家得知超新星与我们远离速率的方法，主要是透过其所属星系的红移来判定。 |
| 6. | Or , to put it another way , a galaxy with a given recession velocity will be farther away than expected ? and hence fainter ? if the universe is accelerating [ see bottom illustration on opposite page ]
换句话说，若宇宙是在加速膨胀，那麽具有某一给定远离速率星系的位置，便会比预期中更远，因而更显晦黯（请见右页图） 。 |
