中文摘要：

城市群已成为全新的地区参与国家和国际竞争与分工的基本地域单元，对城市群产业结构与分工的测度，具有十分重要的实践意义。针对传统相似系数法和区位熵法的不足，把区位熵法与灰色关联分析法两种测度方法结合起来，运用此方法以全国城市为参照系，对长株潭“3＋5”城市群的产业结构进行了比较测度。结果表明，运用此方法可以挖掘区域产业结构的更多有效信息，不仅测度了长株潭“3＋5”城市群各城市及城市群整体与全国城市产业结构比较的总体相似程度，还揭示了城市群产业的专业化、比较优势和区域分工的程度。

英文摘要：

The urban agglomerations are the fundamental region units in the international competition and division.Therefore, it is very important to scientifically evaluate the industrial structure of the urban agglomerations. The paper use both the grey correlative analysis method and the location quotient method as a new method to evaluate the industrial structure of Chang-zhu-tan urban agglomerations in view of the insufficiency of the similar coefficient method or the location quotient method. The result indicated that the new method may unearth more information about the industrial structure, which not only quantificationally estimates the overall similarity of the industrial structure of both between Chang-zhu-tan urban agglomerations and the whole Chinse cities, but also estimate the similarity of the different industry of the different city.