Television industry is a two-sided market, so programming differentiation cannot be interpreted by product differentiation theory perfectly.
电视产业具有双边性市场特征，所以频道间的节目差别和一般产业的产品差别有所不同。
This paper explains the characteristics of the symbolic differentiation programs system, its functions, the idea of its design, and the technique of its programming.
本文说明了符号微分程序系统的一些特征、功能、设计思想和程序设计技术。
The use structure of regional agricultural land was optimized by the method of linear programming based on the analysis and differentiation of resources superiorities in Minhou County.
在分析鉴别闽侯县资源优势的基础上，采用线性规划法对区域农用地利用结构进行优化。
The use structure of regional agricultural land was optimized by the method of linear programming based on the analysis and differentiation of resources superiorities in Minhou County.
在分析鉴别闽侯县资源优势的基础上，采用线性规划法对区域农用地利用结构进行优化。
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