指同一区域的一些国家在维护共同利益的基础上，加强经济合作，通过某种形式（条约、协议）组成贸易组织。它是政府契约性的，有形的经济组织，可以是封闭的，也可以是开放的。
目前的区域集团化组织不仅数量大量增加，而且合作的深度和广度也都达到了前所未有的新阶段。
At present not only the amount of regional collectivization organizations has increased a lot, but also the depth and range of cooperation comes to an unprecedented new stage.
随着世界范围内区域集团化实践的扩展和深入，对区域集团化进展效果的评价成为国际学术界关注的热点问题。
With the extensive practice of regionalism worldwide, the evaluation on the results of regionalism has raised great attention among international academic circle.
更新的思维方式表现在顺应区域经济集团化的发展趋势，谋求依靠集团化的力量；
The mode of thinking is showed by that China conforms to the trend of regional economic integration and seeks relying on the strength of group;
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