在已有研究成果的基础上，本文分析了科普产业的特征，界定了科普产业的内涵，对科普产业进行了分类。
According to previous research findings, this paper summarized the key characteristics of science popularization industry and represented its connotation and main categories.
本文在已有研究成果基础上，围绕六个方面提出了研究假设，利用调查数据，运用SPSS统计分析软件进行了验证。
Based on the existing research results, research hypothesis is put forward around six aspects. Using the SPSS statistical analysis software, the survey data is verified.
针对复杂的流域防洪系统调度方案评价决策问题，在已有研究成果的基础上，初步提出相应的防洪系统调度评价指标体系原型。
Based on the existing research results, an index system is proposed for determination and evaluation of the operational scheme of the river basin flood control system.
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