The new life was bought to the viscous fingering research, due to the presentation of DLA (short for "Diffusion-Limited Aggregation") model, the type of fractal growth models.

以扩散限制凝聚模型(简称DLA模型)为代表的分形生长模型的出现，为研究粘性指进现象带来了新的生机。

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The structure transitions in cluster cluster aggregation (CCA) and diffusion limited aggregation (DLA) under external electric fields have been investigated by computer simulations.

用计算机模拟，研究了电场下的团簇-团簇凝聚(CCA)和扩散限制凝聚(DL A)的结构转变。

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By using the molecular dynamics theory and diffusion limited aggregation model of film growth, the fractal phenomenon of the nodule nucleation was well explained.

用分子动力学和薄膜生长的扩散限制聚集模型，薄膜中结瘤微缺陷成核时的分形现象得到了很好的解释。

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