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。

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

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SAXS分析表明，该薄膜的分形维数比扩散限制凝聚模型（DLA）的理论值大，团簇是由大量小颗粒构成。

The SAXS analysis show that the fractional dimensions of the film is larger than the theory value of Diffusion Limited Aggregation (DLA) and the clusters consist of a great number of small particles.

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在微米及亚微米尺度内，采用原子力显微镜(afm)研究了沉积银原子团簇(或凝聚体)的微观结构特征。

We also study the microstructure of the ag clusters or aggregates at the micro and sub-micro scales by using the AFM measurement.

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