So we should adopt effective measures to create the beneficial conditions to the learn in the cluster and promote the upgrading in the value chain of enterprises in the cluster.

因此，我们应对区域集群采取有力的措施，营造有利于集群内学习的条件，以促进集群内企业在价值链内的升级。

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The upgrading in global value chain of enterprises in the industrial cluster will be affected by the cluster.

产业集群内企业在全球价值链中的升级会受到集群的影响。

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Global value chain theory, industrial cluster theory and firm capability theory are three important theoretical frameworks which are applied to analyze upgrading.

全球价值链理论、产业集群理论以及企业能力理论是研究企业升级问题的三种重要理论。

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She recommends upgrading from the exposed-light-bulb-and-chain look and installing a simple orb fixture.

WSJ: Inside Jobs: Wallpapering Your Closet