An active region with a bipolar sunspot is formed when the magnetic fluxring of the sunspot rise to the solar surface from the depth of solar convection zone.
当太阳黑子磁环从太阳对流层深层上浮到太阳表面时，便形成了一个双极黑子群的活动区。
2
Hot electron ring can reduce growth rate of the instability and anomalous transport flux.
热电子环能降低不稳定性的增长率，减少等离子体的反常输运损失。
3
Camparing the simulations and experimental data of a permanent magnet ring, the calculation error of the magnet flux density is less than 8%. The results show that the calculation formula is correct.