magnetic treatment

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 applications.
   磁体在许多应用中被使用。
3. 3. The scientist discovered a new type of magnetic material.
   科学家发现了一种新的磁性材料。