在基本的自由随机行走模型的基础上，通过合理假设简化扰动问题，提出了可解析求解的理论模型。
Based on the fundamental model of random walk, a reasonable simplification of response model and solvable theoretical model were proposed.
通过改进的DLA模型，重复出颗粒随机行走和粘附的动力学过程。
The DLA model is improved to simulate the process of stochastic walking and adherence of nano-particles under periodic vibrations.
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