单词：grain size distribution
grain size distribution的用法和样例：
例句
- The addition of surfactant will narrow particle size distribution of microcapsules.表面活性剂的加入会使微胶囊的粒度分布变窄。
- The particle size distribution of the particulates and the rate of their coalescence were determined by using the Coulter counter.应用库尔特计数器测定粒度分布及粒径变化规律。
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