magnefer

例句：

1. 1.The magnet attracts iron filings to it.
   磁铁吸引铁屑。
2. 2. Magnetic fields are used in many scientific experiments.
   磁性场在许多科学实验中被使用。
3. 3. The magnetized material is useful for storing information.
   磁化材料用于存储信息。