oxide magnet

例句：

1. 1. The oxide magnet is a powerful tool for attracting and holding metals.
   氧化物磁铁是一种强大的工具，用于吸引和保持金属。
2. 2.The oxide magnet was used to create the magnetic field in the device.
   氧化物磁铁被用来在设备中产生磁场。
3. 3. The oxide magnet has been found to have unique properties that make it useful in various applications.
   氧化物磁铁被发现具有独特的性质，使其在各种应用中非常有用。