第四部分，对东北亚地区经济合作核心区域——图们江区域国际合作开发进行了研究。
Four-part cent, to the core of the economic cooperation in the northeast Asia region —Tumen River's international cooperation development was carry on .
本文介绍了图们江经济开发区经济地图项目来源，重点对经济地图的设计原则、特点、编制特色及经济地图在区域开发中的新功能进行了阐述。
This paper introduced the origin of on items the economic map in TREDA, and elaborated the design principals, characteristics, edition features and the new function of the economic map in this region.
在新形势下，图们江区域合作开发工作尤为重要。
Under the new circumstances, the regional development of the Tumen River area is especially important.
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