General expressions of the magnetic vector potential for multipole fields are derived.
推导出了用多极场空间谐波函数表示的磁矢位的通项表达式。
The magnetic nano materials have been widely applied in the medical fields, such as magnetic thermotherapy for tumor, imaging diagnosis, and drug vector.
磁性纳米介质在医药等诸多领域有广泛的应用价值，如肿瘤磁感应热疗、影像诊断、药物载体等。
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