单一分布 meaning in English

simple arrangement
unit distribution

I . the study of ground states in monodisperse and polydisperse electrorheological fluids upon the application of an external field , the suspended particles in an er fluid aggregate in a certain structure
单一分布( monodisperse )和多分布( polydisperse ) er流体的基态结构如上所述， er流体的主要特征，表现在外加电场后，体系中的颗粒会聚集成一定的结构。
The model is applied to the study of ground states in monodisperse and polydisperse er fluids . the effects of dielectric constants on the structure formation in both systems are studied in a wide range of dielectric contrasts between the particles and the fluids
该模型的有效性和简单性，使我们能够计算引入多极矩作用后，在单一分布和多分布的er流体体系中，基态结构随颗粒偶极矩因子的变化。