Japan's Hinode sun-watching satellite photographed the sun's two coronal holes on Feb. 1.
2月1日，日本的日之出太阳观测卫星拍摄了太阳的两个日冕。
Some statistical relationships between coronal holes and prominence in solar active cycle 21 are analysed.
分析了太阳活动21周冕洞和日珥之间的一些统计关系。
One other interesting aspect of the relation of coronal holes to the solar wind follows from the appearance of coronal holes at the poles.
日冕洞与太阳风的关系的另一个有趣的方面是日冕洞在两极的形状。
In this paper the author expound mainly the current status in the research of solar quiet corona, coronal holes and heating mechanism of corona.
主要论述宁静日冕和冕洞，以及日冕加热问题的研究现状。
In this paper the author expound mainly the current status in the research of solar quiet corona, coronal holes and heating mechanism of corona.
主要论述宁静日冕和冕洞，以及日冕加热问题的研究现状。
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