Sub-models are effective labor model, fixed capital model, productive cost model and land productivity model.

次一级的模型包括有效劳动模型、固定资本模型、生产费用模型和土地生产潜力模型。

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This paper concerns the rational selection type of secondary logging in Heilongjiang forest area by productivity and productive cost.

这篇文章通过生产率和生产成本讨论了黑龙江林区二次集材选型问题。

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Comparison of productive method, energy consumption, productive cost and environmental protection, for optimal technical decision in the prophase project.

着重对聚氯乙烯的生产方法、能源消耗、生产成本和环境保护进行比较，为项目前期工作优化技术决策。

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Of course, those productive investments cost money.

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The second is that the most productive, cost-effective way for the federal government to advance this process is to serve as a catalyst for change by leveraging its distinctive capabilities to influence others in support of these reforms.

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While this approach can be tempting, it usually ends up being counter-productive and will likely cost your organization more in the long run.

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