因此，太阳活动区磁场测量和非势特征的研究对理解太阳表面上各种活动现象的物理机制和动力学过程有着十分重要的意义。
The measurement of solar magnetic field and the non-potential characteristic of solar activity are important to explain the physical mechanism and dynamical process of solar activity.
这个黑子群的磁场活动首先被卫星发现，编号为活跃区1339 (AR 1339)。当时它刚开始沿太阳西北边缘移动。
Dubbed Active Region 1339, the cluster of magnetic activity was first spotted by satellites as it started making its way around the sun's northwestern edge.
在嵌入方框内亮区显示了刚从太阳内部浮现的磁场产生的一个新活动区。
The bright region in the inset box shows magnetic fields that have just emerged from the solar interior, producing a new active region.
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