particle sizing

例句：

1. 1.The engineer used a microscope to measure the particle size of the sand.
   工程师使用显微镜来测量沙子的颗粒大小。
2. 2. The particle sizing process is crucial for the quality control of the final product.
   颗粒大小测定过程对于最终产品的质量控制至关重要。
3. 3.The company specializes in the measurement of particle sizing for various materials.
   该公司专门从事各种材料的颗粒大小测定测量工作。