微晶

例句：

1. 1. The microcrystal structure of the materialis very interesting.
   这种材料的微晶结构非常有趣。
2. 2. The nanocrystalline coating on the surface of the metalgreatly enhances its corrosion resistance.
   金属表面的纳米晶涂层极大地提高了其耐腐蚀性。
3. 3. The study of microcrystals has led to significant advancementsin materials science.
   对微晶的研究已经显著推动了材料科学的进步。