| 1. | Will they try to locate the blue planet ?
他们会不会设法找到这个蓝色行星的位置？ |
| 2. | In the meantime the protoplanet cores were proceeding to consolidate .
在此期间，原行星的核开始凝成。 |
| 3. | No snowflake may fall without some reaction of the planet .
没有这个行星的某种反作用，雪片不可能掉下来。 |
| 4. | The path of a planet appears to consist of loops that recur regularly .
行星的轨迹呈现出规律重复的环形。 |
| 5. | The orbits of the planets are ellipses with the sun at one focus .
行星的轨道是以太阳作为焦点之一的椭圆。 |
| 6. | Planetary perturbations make the earth's orbit about the sun irregular .
行星的摄动使得地球绕太阳的轨道是不规则的。 |
| 7. | The telescopes and spacecraft of today have cleared up many of the mysteries of the planets .
今日之望远镜和宇宙飞船已消除了行星的许多神秘之处。 |
| 8. | First, we know that the planets all orbit close to the earth's orbital plane, the ecliptic .
首先，我们知道所有行星的轨道都很靠近地球的轨道平面黄道面。 |
| 9. | His study showed that most of the present atmospheric gases originated in each planet's interior .
他的研究表明，现有大气中的大部分气体都来源于诸行星的内部。 |
| 10. | Very accurate predictions of planetary orbits require corrections to the central-field approximation .
想要非常准确地预言行星的轨道，就需要对中心场近似进行修正。 |
