This paper proposes an urban and regional spatial model based on Self-organization theory and the new production of new Economic Geography.
文章提出了一种基于自组织理论与新经济地理学最新成果的城市与区域空间格局演变模型。
Subsequently, the geography of the military units involved in the beginning, the German army for the collection and production of extremely useful materials and maps.
随后,军事地理单位开始介入,为德军收集和制作极其有用的材料和地图。
In FeNb production, unevenness of geography, high monopoly of supply and sufficient resources, supply exceeding demand, relatively stable price are two big characteristics of world FeNb supply-demand.
铌铁生产的地缘不平衡性和供给的高度垄断性以及资源充足、供大于求、价格相对稳定是世界铌铁供求的两大特点。
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