本文力求从空间结构的角度去探求东北经济区20世纪90年代初以来空间结构的变化。
I tries hard to explore variety of space structural from the structural Angle since the beginning of 90's in 20 centuries in northeast explore economic area in text.
东北是我国最为典型的大经济区，对全国的贡献最大，但投入十分不足。
Northeast is China's most typical big economic zone, with the greatest contribution to the whole country, but with the shortage of investment.
东北亚是世界重要经济区之一。
Northeast Asia is one of the important economic areas of the world.
东北亚次区域是东亚经济区最具合作潜力的地区。
Northeast asia sub-region is an area that has most cooperation potentiality in east asia.
东北亚次区域是东亚经济区最具合作潜力的地区。
Northeast asia sub-region is an area that has most cooperation potentiality in east asia.
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