They are gaps in the sun's magnetic field which make a hole through the star's super-hot outer atmosphere — the corona — allowing gas to escape, according to a NASA description.
根据美国国家航空航天局的描述，他们是太阳磁场的缺口，太阳磁场制造了一个穿透这颗恒星外层大气的空洞—日冕，允许气体逃脱。
Energy balance models of the chromosphere-corona transition region are computed for a segment of coronal hole assuming a nonradial magnetic field geometry.
本文采用非径向磁流管位形的假设，计算了太阳冕洞网络部分的色球-日冕过渡区的能量平衡模型。
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