纵观现有文献，以产业集群为主题的不在少数，但与CBD相关的比较有限。
Looking through current literature, though many of them treat clusters as thesis theme, limited quantity is related with CBD.
纵观现有文献，以产业集群为主题的不在少数，但与CBD相关的比较有限。
Looking through current literature, though many of them treat clusters as thesis theme, limited quantity is related with CBD.
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