closest-packed crystal plane

例句：

1. 1.The crystal structure of the material is closely packed, which makes it highly durable.
   这种材料的晶体结构紧密排列，这使得它非常耐用。
2. 2.The research team has discovered a new method to create closest-packed crystals at room temperature.
   研究团队发现了一种在室温下制造最密排晶体的新方法。
3. 3.The closest-packed crystals have unique properties that make them useful in various applications.
   最密排的晶体具有独特的性质，这使得它们在各种应用中非常有用。