pure metal crystal

例句：

1. 1.The pure metal has a high melting point and can be used as an insulator.
   这种纯金属具有很高的熔点，可以用作绝缘体。
2. 2. The metal crystals have a unique structure that makes them highly resistant to corrosion.
   金属晶体具有独特的结构，这使得它们对腐蚀具有很强的抵抗力。
3. 3.The pure metal crystals are often used in electronic devices due to their excellent electrical conductivity.
   由于其出色的电导率，纯金属晶体常用于电子设备中。