| 1. | The primary cosmic radiation that reaches the earth is minimum at periods of maximum solar activity .
在极大的太阳活动时期，到达地球的初级宇宙辐射是极小值。 |
| 2. | Below 60km, ionization is not due to the sun's ultraviolet and x radiation primarily, but to cosmic radiation .
在60公里以下，电离主要不是由于太阳紫外线和X辐射，而是由于宇宙辐射引起的。 |
| 3. | Radiation tidbits - air travel and cosmic radiation
辐射小知识：飞行和宇宙辐射 |
| 4. | How much cosmic radiation is there on a flight
在飞机上会感染到多少宇宙辐射？ |
| 5. | The e - bulletin has been enriched with a new column - radiation tidbits
今期讨论的是飞行和宇宙辐射。 |
| 6. | What is the solar cycle and how does it affect cosmic radiation
什么是太阳周期，而它怎样影响宇宙辐射？ |
| 7. | The e - bulletin has been enriched with a new column - radiation tidbits
今期讨论的是飞行和宇宙辐射。 |
| 8. | Air travel and cosmic radiation
飞行和宇宙辐射 |
| 9. | It s where we get our magnetic poles . it protects us from cosmic radiation
所以我们才有磁极可以帮我们阻挡宇宙辐射 |
| 10. | What is cosmic radiation
宇宙辐射是什么？ |
