藝術與建築詞典根目錄
....關聯概念層面
........關聯概念
............<科學概念>
................<物理科學概念>
....................<磁學與相關概念>
........................磁學
|||............................電磁
|||............................地磁
............................殘磁性
|||................................考古地磁學
|||................................古地磁學
|||................................熱頑磁
|||........................磁場