coronal hole

• 冕洞

coronal hole的用法和样例：

例句

1. The solar wind streaming from this coronal hole triggered colorful auroral displays on planet Earth begining late last week, enjoyed by spaceweather watchers at high latitudes.
   太阳风从这个冕洞中流出，从而触发了上周末地球极光的发生，让高纬度的太空观测者们欣赏到了美景。