IEC TR 62981:2017 采用单片测试法和爱泼斯坦测试法测定晶粒取向电工钢片磁性能的研究与比较 Studies and comparisons of magnetic measurements on grain-oriented electrical steelsheet determined by the single sheet test method and Epstein test method 标准号：IEC TR 62981:2017 发布日期：2017-05-22
IEC TR 62981:2017