coronal electrophotometer

例句：

1. 1. The coronal part of the sun is visible from Earth.
   从地球上可以看到太阳的冠状部分。
2. 2.The coronal mass ejections are responsible for the solar flares.
   太阳耀斑是由冕状物质抛射引起的。
3. 3.The coronal holes are regions of space where the magnetic field lines are disrupted.
   磁层中的环状区域是磁场线被破坏的地方。