| 1. | Our tests are not polluting the atmosphere .
我们的试验并不沾污大气层。 |
| 2. | Aerosols are present throughout the atmosphere .
气溶胶存在于整个大气层。 |
| 3. | The spacecraft re-entered the atmosphere .
宇宙飞船重返大气层。 |
| 4. | The main reservoir of nitrogen is the atmosphere .
氮的主要蓄存库是大气层。 |
| 5. | The spacecraft re-entered the atmosphere .
太空船重返大气层。 |
| 6. | We are not advocating atmospheric testing .
我们不是在鼓吹进行大气层核试验。 |
| 7. | Steam will fill the atmosphere and all life will perish .
水蒸汽将充满大气层，所有的生命都将毁灭。 |
| 8. | About 70 elements have been detected in the sun's atmosphere .
在太阳的大气层中，大约有70种元素已被确认。 |
| 9. | The spacecraft burned up when it re-entered the earth 's atmosphere .
宇宙飞船重新进入地球大气层时烧毁了。 |
| 10. | Since the moon lacks an atmosphere, weathering did not occur there .
既然月球没有大气层，那里就不会发生风化。 |
