说明：  电磁场仿真软件ansoft的入门和提高级教材，ansoft可以仿真静磁场、涡流场、瞬态磁场、静电场、交直流传导电场等内容。
(Electromagnetic field simulation software the ansoft the entry and improve the level textbooks, the the ansoft can simulate the static magnetic field, eddy current field, transient magnetic fields, electrostatic fields, AC and DC conduction electric field and other content)