particle size distribution curve

例句：

1. 1. The engineer drew aparticle size distribution curve to show the sizeof the particles in the sample.
   工程师绘制了一个颗粒大小分布曲线，以显示样本中粒子的大小。
2. 2.The scientist used this curve tostudy the relationship between the two variables.
   科学家使用这个曲线来研究这两个变量之间的关系。
3. 3.The data on the curve showed that theparticles were uniformly distributed across the sample.
   曲线上的数据表明，样品中的粒子均匀分布在整个区域。