| 1. | This is a clear indication of the connection with the solar activity .
这就清楚地表明，这种现象和太阳活动有明显联系。 |
| 2. | 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。 |
| 3. | Whether the decreased solar activity was somehow responsible for the little ice age is still unknown .
太阳活动的衰减是否会以某种方式引起小冰川期，这还不清楚。 |
| 4. | Active regions are in a sense the fundamental unit of solar activity and the most persistent and visible manifestation of solar magnetism .
在某种意义上说，活动区是太阳活动的基本单位，也是太阳磁性最持久的和看得见的表现形式。 |
| 5. | Solar flare is a violent solar activity
太阳耀斑是一种剧烈的太阳活动现象。 |
| 6. | Intense solar activity in september 2005
二零零五年九月的剧烈太阳活动 |
| 7. | Intense solar activity in september 2005
二零零五年九月的剧烈太阳活动 |
| 8. | In solar activity over the three years from 1997 to 1999
一九九七年至一九九九年间有著明显的增长 |
| 9. | Solar activity is periodic
太阳活动是有周期性变化的。 |
| 10. | Researches on the origin of solar activity : the empirical and semi - empirical
太阳活动周的经验和半经验模型 |
