这样,有90%以上的光落在第二暗环所包围的圆面积之内。
Thus more than 90 per cent of the light is contained within the circle bounded by the second dark ring.
观测到与耀斑有联系的暗环的膨胀和上升,说明新磁流浮现区与老场作用是触发耀斑的一个重要条件。
We have observed expansion and rising up of dark loops connected with flares. It shows that interaction between the new field and the old field is an important condition of flare triggering.
当太阳内部深处形成巨大的磁力环,该处将会产生井喷并突破太阳表面,从而使表面的局部地区温度下降,看上去就像一个暗斑,这就是黑子的形成。
They form where giant loops of magnetism, generated deep inside the sun, well up and burst through the surface, leading to a localised drop in temperature which we see as a dark patch.
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