设计一个电子商务价值链，关注在数量有限的核心竞争力上，而不是一个一站购齐的解决方案。
The design of ane-commerce value chain, concerned about the limited number of core competencies, rather than a one-stop-shop solution.
通过分析与比较电子商务价值链模式与传统价值链模式，构建了电子商务环境下的价值链模型。
By analyzing and comparing the electronic commerce value chain pattern and the traditional value chain pattern, the value chain model under the electronic commerce environment is constructed.
通过分析与比较电子商务价值链模式与传统价值链模式，构建了电子商务环境下的价值链模型。
The paper brings forward the value chain model of the power supply companies by analyzing their characteristics.
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