基于主成分分析的区域R&D活动测度研究

基于主成分分析的区域R&D活动测度研究

Science & Technology Progress and Policy ›› 2007, Vol. 24 ›› Issue (9) : 183-185.

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Science & Technology Progress and Policy ›› 2007, Vol. 24 ›› Issue (9) : 183-185.

区域科学发展

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