auroral substorm

例句：

1. 1. The auroral substorm was visible from space.
   从太空中可以看到极光亚暴。
2. 2.This region is prone to auroral substorms during the winter months.
   这个地区在冬季容易发生极光亚暴。
3. 3.Auroral substorms are responsible for the colorful displays of the northern lights.
   极光亚暴是北极光绚丽多彩的原因。