subflare kernel

例句：

1. 1. The subflare kernel is the part of a starthat undergoes an eclipse during atotal eclipse.
   副星核是一颗恒星在全食期间经历的暗食部分。
2. 2. During the subflare phase,the star's outer layers are heatedby the sun's intense radiation.
   在副食阶段，恒星的外层被太阳强烈的辐射加热。
3. 3. The subflare kernel is responsiblefor the star's rapidrotation and the formation of its magneticfield.
   副食核负责恒星的快速旋转和磁场的形成。