“粒子数增加的”可以翻译为 “with an increase in the number of particles” 或者 “characterized by an increase in particle count” 。
例如在句子中可以这样用：
This process leads to a situation with an increase in the number of particles.（这个过程导致了粒子数增加的情况 。）
The experiment shows a phenomenon characterized by an increase in particle count.（实验显示了一种粒子数增加的现象 。）