auroral kilometric radiation

例句：

1. 1.The aurora borealis is visible from the Arctic region.
   北极地区可以看到极光。
2. 2. Auroras are a natural wonder that can be seen from space.
   极光是自然奇观，可以从太空看到。
3. 3. This auroral display was caused by solar storms.
   这次极光现象是由太阳风暴引起的。