samarium-cobalt magnet

例句：

1. 1.This magnet is strong enough to attract iron filings.
   这个磁铁足够强大，能吸引铁屑。
2. 2. The magnet has a strong magnetic field, making it useful for many applications.
   这个磁铁有很强的磁场，适用于许多应用。
3. 3. The magnet was used in the manufacturing of many electronic devices.
   这个磁铁被用于制造许多电子设备。