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磁性材料的发现及其近百年来研究成果的飞跃发展,使磁性材料在电气工业和仪表工业上得到了极其广泛的应用.在汽车拖拉机电气设备中亦少不了它,
The discovery of magnetic materials and the rapid development of their research results over the past century have made magnetic materials extremely broadly used in the electrical industry and instrumentation industry. In the field of automotive tractor electrical equipment,