磁铁材料导磁率的试验方法的英文

standard test methods for permeability of feebly magnetic materials

• 磁铁:    magnet; ferromagne ...
• 材料:    material
• 导磁率:    magnetic inductivi ...
• 的:    4次方是 The fourth po ...
• 试验:    experiment; test; ...
• 方法:    method; means; way ...