innovation
发表于 2025-3-28 17:58:13
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聚集
发表于 2025-3-28 19:44:36
Quantum Noise Reduction in Optical Systems,hape of a market area around a single center for a single commodity will be a hexagon. Thus the general structure of a regional hierarchy, based on a set of market areas for different commodities, will be a nested (Christaller) or overlapping (Lösch) set of hexagons.
弓箭
发表于 2025-3-29 00:02:19
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Entreaty
发表于 2025-3-29 04:50:04
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颂扬国家
发表于 2025-3-29 09:53:59
The New Economic Geography Approach and Other Views,storical development of cities. The presence of nonlinearities most clearly associated with increasing returns of one sort or another lay at the foundation of the discontinuous bifurcations underlying this historical process and its actual historical ruptures. However, since 1991 a literature has ap
包庇
发表于 2025-3-29 13:38:41
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受人支配
发表于 2025-3-29 17:36:40
Morphogenesis of Regional Systems,lane, with a single urban market center. Subsequently this model was expanded by Christaller (1935) and Lösch (1940) to multiple market centers of different sizes and different commodities, while still assuming linear transportation costs on a homogeneous plane. For both Christaller and Lösch, the s
RODE
发表于 2025-3-29 20:18:08
Complex Dynamics in Spatial Systems,eth Lloyd (Horgan, 1997) being the basic starting point (Rosser, 2009a). Dynamic complexity can be seen as consisting of four categories: cybernetics, catastrophe, chaos, and interacting heterogeneous agent-based complexity, which Rosser (1999b) previously labeled “small-tent complexity,” the “big-t
旋转一周
发表于 2025-3-30 02:53:06
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我不重要
发表于 2025-3-30 07:36:20
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