“磁学”造句

但还从未有人研究出磁学理论.
But nobody had previously worked out a theory about magnetism.

在磁学中的主要结构单元是磁畴.
The principal structural element in magnetism is the domain.

电学需要冶金学和磁学, 而企业则首先需要银行技能.
Electricity needs metallurgy and magnetism; corporations first require banking skills.

• #磁学