用增量分析方法推导出单位产品成本变动率分析模型。
Incremental analysis is employed to infer the analytical model of the change ratio of unitcost.
自然垄断企业之所以胜出是因为它的产品成本更低，因此可以在每单位产品上获得更多利润。
The natural monopoly 'wins' in the sense of producing goods for less, thus making a larger profit on each item sold.
通过对协作单位的产品成本构成进行分析，找出了小农机的价格瓶颈主要在于减速箱。
By analyzing the ingredients of product cost, we find out that the bottleneck of price for SAM lies on reducer.
通过对协作单位的产品成本构成进行分析，找出了小农机的价格瓶颈主要在于减速箱。
By analyzing the ingredients of product cost, we find out that the bottleneck of price for SAM lies on reducer.
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