将地理信息系统应用于城市突发性的大气污染事故，对大气扩散模型的图形技术进行开发研究。
GIS is applied to air pollution emergency in urban areas. The figured technology of atmosphere diffusion model is studied.
为了提高遥感图像分类精度，提出了一种基于概率扩散模型的多光谱遥感图像自动分类技术。
In this paper, we propose an automatic multispectral remote sensing image classification technique based on improved probabilistic diffusion.
本文通过一个扩散模型描述了技术扩散速度对跨国公司技术优势和垄断租金的影响。
This thesis presents a model of diffusion to describe how the diffusion speed affects the multinational corporations 'advantages in technology and monopoly rents.
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