| 1. | Technetium was discovered in certain cool stars .
锝是在一些冷却的星体上发现的。 |
| 2. | The medium extends unbroken from star to star .
这种媒质连绵不断地从一个星体扩展到另一个星体。 |
| 3. | A nebula is really a discrete mass of innumerous stars .
一团星云实际上是无数星体不连续的集合体。 |
| 4. | We can analyze by statistical mechanics the behavior of the stellar substance .
我们能用统计力学方法来分析星体物质的性能。 |
| 5. | She was amazed at the number of astral bodies the new telescope revealed .
从这台新的望远镜里竟能看到那么多的星体，这把她惊呆了。 |
| 6. | Both changes make the star tend to shrink, which induces stresses in the crust .
这两种变化都会使星体收缩，因而在星壳中产生应力。 |
| 7. | This classification is not arbitrary like the grouping of the stars in constellations .
这种分类并不象把星座里的星体分成各群那样地随意。 |
| 8. | Five other celestial objects visible to the naked eye also shift their positions with respect to the stars .
还有5颗肉眼可见的星体，也相对于恒星漂移。 |
| 9. | The mirror of an astronomical telescope forms at its focal point an image of a star on the axis of the mirror .
天文望远镜把在镜轴上的星体成象在焦点上。 |
| 10. | Material falling toward the surface of a star will become compressed and heated, shock waves may form .
落到星体表面的物质会被压缩和加热，可以形成冲击波。 |
