The research results reveal that enterprise ownership system, intensity of R&D project input, firm colony structure, industrial firm clusters have significant relation ship with the efficiencies.
研究结果表明，企业制度、研发项目投入强度、企业群体结构和产业集群对区域技术创新效率有显著影响。
On the basis of the existing results, the problems in the studies on vegetation colony structure and the interception of light by a canopy are dis-cussed.
在对已有成果综合分析的基础上，探讨了植物群体受光结构与光截获研究中亟待解决的问题。
In this paper, the parameters of vegetation colony structure, up-to-date technique in the parameters obtaining, the model of the interception of light by a canopy and their relation are presented.
较为系统地讨论了植物群体受光结构参数及参数获取的新技术新方法、光截获模型及受光结构参数与光截获的关系。
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