microstructure of coal

例句：

1. 1. The microstructure of the material is crucial for its mechanical properties.
   这种材料的微观结构对其机械性能至关重要。
2. 2. The nanotechnology industry is expected to grow rapidly in the coming years.
   预计未来几年纳米技术行业将迅速增长。
3. 3. The researcher discovered a new way to manipulate the microstructure of materials.
   这位研究人员发现了一种操纵材料微观结构的新方法。