价格变量曾经被视为过程的主导因素，现在从属于新产品、新业务结构和新技术的竞争。
The price variable, once perceived as the dominant aspect of the process, is now subordinate to the competition of the new product, the new business structure, and the new technology.
本文运用线性规划理论，建立了一个包括54个变量(产品)，43个约束条件产品结构优化数学模型。
A mathematics model which deals with 54 variables and 43 constraint conditions is proposed to optimize the product structure by using linear programming theory.
产品变量中的多个属性都影响渠道结构。
Several attributes of product variables influence the channel structure.
在渠道结构模型中，其中市场变量起引导性作用，产品变量起支撑性作用。
In the channel structure model, the market variables play the leading role and the product variables play the supportive role.
在渠道结构模型中，其中市场变量起引导性作用，产品变量起支撑性作用。
In the channel structure model, the market variables play the leading role and the product variables play the supportive role.
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