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1·Also included will be any variations that have arisen from volcanic activity, solar activity, and, possibly, human activities.

这还将包括火山活动、太阳活动，可能还有人类活动引起的任何变化。

2·In addition to the internal variability of the global climate system itself, there is the added factor of external influences, such as volcanoes and solar activity.

除了全球气候系统本身的内部变化之外，还有外部影响的附加因素，如火山和太阳活动。

3·Another is solar activity.

二是取决于太阳的活动程度。

4·So why does solar activity have these effects?

那么为什么太阳活动有这些作用？

5·Still another asserted that solar activity caused climate shifts.

还有演示声称，是太阳活动导致了气候转变。

6·Solar activity rises and falls on a regular cycle of about 11 years.

太阳的活跃程度按照一个11年代周期涨落。

7·Solar activity waxes and wanes according to approximately 11-year cycles.

太阳活动的盈亏周期大约是11年。

8·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。

9·The more we know about solar activity, the better we can protect ourselves.

我们对太阳活动知道的越多，就越能更好地保护我们自己。

10·Recently UK researchers linked low solar activity and freezing cold winters in Europe.

最近英国科学家认为欧洲冷冬和太阳活动低有关。