太阳黑子循环 meaning in English
sunspot cycle
Examples
- " on january 4 , 2008 , a reversed - polarity sunspot appeared ? and this signals the start of solar cycle 24 , " says david hathaway of the marshall space flight center
太阳黑子循环24已于2008年1月开始,但是太阳周期23尚未结束。两个周期一段时间将共存,在未来几个月也许同时会看到老周期黑点和新周期黑点。