The industry cluster is a kind of historic phenomenon. there is a certain factor to predominate its system advantage in different ages, and this kind of factor has been evolving continuously.
产业群是一种历史现象，在不同时代都存在着某种特定因素主导它的系统优势，并且这种因素在不断演进。
The industry cluster is a kind of historic phenomenon. there is a certain factor to predominate its system advantage in different ages, and this kind of factor has been evolving continuously.
产业群是一种历史现象，在不同时代都存在着某种特定因素主导它的系统优势，并且这种因素在不断演进。
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