）施坚雅对晚清城市史研究的最大贡献是其提出的区域体系理论(regional system theory)，在他看来，“工业化前期，以中国作为整体的全国城市化率实际上几乎毫无意义，要重新系统地阐述这一问题，就必须从各个区域出发...
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A grey relation projection model for regional eco-environmental quality evaluation is established based on grey system theory and vector projection principle.
基于灰色系统理论和矢量投影原理，建立了区域生态环境评价的灰色关联投影模型。
Based on the theory in physics about the influence mode of disaster to city regional system and theory of field, the new conception of disaster field is defined.
根据灾害对于城市区域系统的影响方式和对理论的研究，对灾场的概念进行了全新的定义。
In this paper, some pilot study on the theory, method, technology and practice of regional information service system for disaster preventing and decreasing are carried out.
本文对区域性防灾减灾信息服务体系的相关理论方法、技术以及工程化实践进行了初步探索。
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