coronal mass ejection

例句：

1. 1.The coronal mass ejection was a major event in the solar cycle.
   冕状物质喷射是太阳周期中的重大事件。
2. 2.The scientists were studying the coronal mass ejection to understand its impact on the Earth's atmosphere.
   科学家们正在研究冕状物质喷射，以了解其对地球大气层的影响。
3. 3. The coronal mass ejection caused a significant increase in the solar radiation reaching the Earth's surface.
   冕状物质喷射导致到达地球表面的太阳辐射显著增加。