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七十年代以来,国内外科学工作者对SmCo_5永磁体的研究进行了大量的工作。以还原扩散法而言,一般认为可用下列方程式表示:
Since the 1970s, scientists at home and abroad have done a lot of work on the research of SmCo_5 permanent magnets. In terms of reduction diffusion method, it is generally considered to be expressed by the following equation: