The 7 common factors which come from factor analysis almost consisted with theoretic structure, and the contributing rate of cumulative sums of squares was 66.03%.
因为分析产生的7个公因子与理论结构基本一致，累积方差贡献率为66.03%。
On the basis of analysis of the cost construct and its contributing factor in the mechanical product life-cycle, the generation rules of product manufacturing cost are studied.
本文在分析产品全生命周期中各段成本构成及其影响因数的基础上，揭示了产品制造成本的形成规律。
The present situation of ecological environment in China and analysis of contributing factor are discussed. Some practical suggestions are put forward.
论述了中国生态环境的现状，同时对形成现状的原因作了系统的分析，对保护中国生态环境提出了可行性建议。
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