这是一个11岁的波动太阳黑子数。
太阳表面的黑子数在其一般延续11年的活动周期内增增减减。
The number of spots on its surface has waxed and waned in cycles that last, on average, 11 years.
通过对年平均太阳黑子数典型统计模型的预测，验证了该方法的预测效果。
It has been verified that the prediction effect of the method is sound by predicting average sunspot Numbers per year, which is a typical statistical model.
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