rare-earth-doped crystal

例句：

1. 1.The rare-earth doped crystals are used in various electronic devices.
   稀土掺杂晶体被用于各种电子设备中。
2. 2.The rare-earth doped crystals have unique properties that make them ideal for use in high-tech applications.
   稀土掺杂晶体具有独特的性质，使其成为高科技应用的理想选择。
3. 3. The rare-earth doped crystals are known for their high thermal conductivity, which makes them useful for heat exchange systems.
   稀土掺杂晶体以其高热导率而闻名，这使得它们在换热系统中得到广泛应用。