此外，供应链的经济寿命周期随产品价格的下降速率增加而缩小。
In addition, the economic life cycle decreases in the price declining rate.
个别产品的产值(产量)曲线在其经济寿命周期里一般是一条S形曲线。
The output curve of a product is generally S-shape curve during its economic life period.
如何确定装备系统的维修周期、维修次数及最优经济寿命周期，成为企业最重要的决策活动之一。
It is one of the most important decision-making activities that how to decide the maintenance cycle, the number of maintenances and the optimal life cycle.
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