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2013-05-23 12:21
求翻译：spillover effect of R&D. According to the results of the ANN model, this paper shows that there is nonlinear and non-monotonic nature of the relationships between the是什么意思？ 待解决
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- 离问题结束还有
spillover effect of R&D. According to the results of the ANN model, this paper shows that there is nonlinear and non-monotonic nature of the relationships between the
问题补充： |
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