magnetization by electric current

例句：

1. 1. The steel plate was subjected to a strong magnetic field for the purpose of magnetization.
   钢板被置于强磁场中，以进行磁化处理。
2. 2.The process of magnetization is essential for the production of permanent magnets.
   磁化过程对于生产永久磁铁至关重要。
3. 3. The magnetization of the material is affected by its chemical composition and temperature.
   材料的磁化程度受到其化学成分和温度的影响。