“magnetic diffusivity”的概念、定义、翻译、参考文献-科学参考

单词	magnetic diffusivity
释义	magnetic diffusivity [mag`ned·ik ´di´fyü`siv·ǝd·ē] ^{ELECTROMAGNETISM} A measure of the tendency of a magnetic field to diffuse through a conducting medium at rest; it is equal to the partial derivative of the magnetic field strength with respect to time divided by the Laplacian of the magnetic field, or to the reciprocal of 4πμσ, where μ is the magnetic permeability and σ is the conductivity in electromagnetic units.
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