law of magnetism

例句：

1. 1. The lawof magnetism states that a magnet canonly attract iron and not other metals.
   磁学定律表明，磁铁只能吸引铁而不会吸引其他金属。
2. 2. The lawof magnetism is used in many scientificexperiments to explain the behavior of magnets.
   磁学定律在许多科学实验中被用来解释磁铁的行为。
3. 3. Thelaw of magnetism hasbeen confirmed by numerous experiments conductedby scientists around the world.
   磁学定律已经被世界各地的科学家进行的无数实验所证实。