Chapter II presents value chain theory, a specific analysis of the value chain theory using in the industry and internal.

第二章提出了价值链理论，具体分析了价值链理论当前在行业和内部的运用情况。

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Using the method of value chain analysis, this paper analyzed the internal activities and the industrial activities of digital library by constructing value chain.

本文将价值链分析法用于数字图书馆中，通过构建价值链，对数字图书馆的内部活动和行业活动进行分析。

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Taking oil-gas recovery enterprises as studying object, a quantitative model of its industrial value-chain and internal value-chain was set up and the relevant positive analysis was carried on.

以油气开采企业为研究对象，建立了油气开采企业行业价值链和内部价值链的数量模型，并进行了相应的实证分析。

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