日面磁场的基本组成单元，其角直径不超过1弧秒。
接着以磁元和黑子磁场为例，介绍现有的主要研究成果。
Thereafter, we introduce the main achievements with magnetic elements and sunspot magnetic fields as examples.
采用有限元ansys软件，分析了相同活塞有效长度下的单线圈与双线圈结构磁流变阻尼器的磁场分布情况。
The magnetic distribution of the single-coil and dual-coil magnetic rheological dampers with the same effective piston length was analyzed by using the finite element ANSYS software.
在介绍漏磁检测原理的基础上，详细论述了利用有限元法分析缺陷信号的方法以及利用ANSYS对漏磁信号的仿真过程和仿真结果，并对结果进行分析。
On the base of introducing the principle of the magnetic flux leakage (MFL) detection, the finite element method based on ANSYS used to simulate and analyze the MFL signal is presented.
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