本文引入集群效应建立企业研发模型，分析了有集群效应与无集群效应条件下的研发可行性区域的差异。
This text sets up enterprises' R&D model and analyses the R&D feasible region under the conditions of clusters and non-cluster effect.
在饭店集团的区域扩张层面，特别是区域扩张的可行性分析以及扩张方式的科学选择方面，缺少一个系统的分析工具。
There lack a systematic analysis tool in the lay of hotel group regional expand, in particular at the aspect of feasibility analysis to the regional expand and scientific choose the expand way.
在此基础上阐述了东北亚区域合作的可行性和现实性。
This article expounds the feasibility and reality of the regional collaboration of Northeast Asian region.
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