通过对单块永磁环磁场分布的仿真计算和实验测试数据比较，磁感应强度计算误差不超过8%，验证了计算公式的正确性。

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.

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美国宇航局太阳和太阳风层探测器拍摄的太阳图像，显示出巨大的磁场环(左下)，充满猛烈脱离太阳的流动热气。

A NASA Solar and Heliospheric Observatory image of the Sun shows a giant magnetic loop (lower left) filled with glowing, hot gas blasting away from the Sun.

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在一些日焰现象中，磁场环圈顶部显现出神奇的尖端，看起来就像是有尖顶的哥德式拱门，而非一般常见的圆顶。

For some of these events the tops of the magnetic loops showed a curious cusp giving them the pointed appearance of a gothic arch rather than presenting the usual rounded peak.

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