particle size distribution

例句：

1. 1.The particle size distribution of the soil is crucial for plant growth.
   土壤的颗粒大小分布对于植物生长至关重要。
2. 2. The engineer analyzed the particle size distribution of the sand to determine its quality.
   工程师分析了沙的颗粒大小分布以确定其质量。
3. 3. The study focused on the particle size distribution of the sediment in the river.
   该研究关注河流中沉积物的颗粒大小分布。