granular materials

例句：

1. 1. The sand was sofine that it felt like a granularmaterial.
   沙子非常细，感觉像颗粒状的材料。
2. 2. The grains of sand were sosmall that they looked like granular materials.
   沙粒非常小，看起来像颗粒状的材料。
3. 3.Granular materials are often used in constructionto improve the strength and durability of buildings.
   颗粒状材料常用于建筑中，以增强建筑物的强度和耐久性。