多晶现象

例句：

1. 1. This material exhibits a unique polycrystalline phenomenon, which is not found in other materials.
   这种材料展现出独特的多晶体现象，这是其他材料所不具备的。
2. 2. The crystallization process of the material is influenced by the polycrystalline phenomenon, which affects itsproperties.
   材料的结晶过程受到多晶体现象的影响，这影响了其性质。
3. 3.The study of the polycrystalline phenomenon has led to significant advancements in the field of materials science.
   对多晶体现象的研究已经导致了材料科学领域的重大进步。