| 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。 |