吸铁石的工作原理 The working principle of a magnet, or " 吸铁石" in Chinese, is based on the fundamental property of magnetism. 磁铁的工作原理是基于磁性的基本特性。 At the atomic level, magnetic materials contain tiny magnetic domains. 在原子水平上,磁性材料包含微小的磁性领域。 These domains consist of groups of atoms with their magnetic moments aligned in the same direction. 这些领域由原子组成,它们的磁矩朝着同一个方向对齐。 When these domains are randomly oriented, the material as a whole does not exhibit any macroscopic magnetic behavior. 当这些领域是随机定向的时候,材料整体上不显示任何宏观的磁性行为。 However, when the domains align in the same direction, the material becomes magnetized and exhibits a magnetic field. 然而,当这些领域朝着同一个方向对齐时,材料就会被磁化并显示出磁场。