然而相关研究大多集中于行业内技术溢出效应，对行业间技术溢出效应的实证研究甚少。
However, most researches focused on intra-industry technology spillover and there were few empirical researches on inter-industry technology spillover.
分析的结果表明，与行业内溢出相比，行业间溢出是更为有效的技术溢出渠道。
The result shows that, compared with intra-industry spillover, inter-industry spillover is much more significant.
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