前者改进并实现了基于3D元胞自动机的林火蔓延模型；
Theformer ameliorates and realizes 3D-cell automaton fire extending model;
该文通过对森林火蔓延模型的研究，建立了一种使用产生式原则的多模型森林地表火蔓延预测系统。
Through the study on the model of forecasting forest fire spreading, this research built a multi-model predicting system based on the production rule.
该风险模型由林火发生的风险模型和林火的蔓延风险模型组成。
This risk model is composed of the fire ignition model and the forest fire spread model.
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