sunspot active cycle [天] 黑子活动周
sunspot active period 太阳黑子活动周期
active sunspot prominence [天] 活动黑子日珥
ACTIVE SUNSPOT 太阳黑子活跃
Spicules line the above frame of solar active region 11092 that crossed the sun last month, but are particularly evident converging on the sunspot on the lower left.
这些针状体在上个月穿过太阳的太阳活跃区域11092号中形成一条条线，不过聚集在左下角太阳黑子上的针状体特别的明显。
Just as a sunspot was turning away from Earth on Sept. 8, the active region erupted, producing a solar flare and a fantastic prominence.
9月8日正当太阳黑子开始远离地球的时候，活跃区域又发生一次爆发，同时出现一个明显的突起。
The South China Sea monsoon bursts earlier, the formation and landing numbers of tropical cyclones are less and their active time is shorter in the peak year of sunspot.
峰值年南海季风爆发时间偏早 ，热带风暴生成个数及登陆个数均偏少 ，且活动期偏短。
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