polycrystalline material的用法和樣例：
例句
- Lattice parameters are the important crystal structural parameters of polycrystalline materials.
晶胞參數是多晶材料晶體結構的重要參數。 - Chromalasion material is a type of inorganic coating material made by utilizing semiconductor compound technology.
柯瑪麗晶材料是一種利用半導體合成技術(shù)研制成的無(wú)機涂料。
