| 1. | The inside orbit has 2 electrons .
最里层的轨道上有2个电子。 |
| 2. | The present-day eccentricity of the orbit is small .
目前，轨道的偏心率不大。 |
| 3. | All the orbits lie nearly in the same plane .
所有物体的轨道几乎都在同一平面上。 |
| 4. | We can draw the earth 's orbit round the sun .
我们可以画出地球绕太阳运行的轨迹。 |
| 5. | The satellite was launched into orbit around the moon .
卫星被射入环绕月球的轨道。 |
| 6. | Both target and projectile orbit the primary .
无论靶体还是射体都在绕主天体作轨道运动。 |
| 7. | An electron in the innermost orbit has the least energy .
最里面的轨道上的电子能量最低。 |
| 8. | We have already worked out the conditions for a circular orbit .
我们已经算出了圆轨道的条件。 |
| 9. | They spin like fiery planets lots from their orbits .
他们象离开了轨道，冒着火的星球那样旋转。 |
| 10. | This was something within the administrator's orbit .
这件事情倒是行政管理人能接得上手的工作。 |
