1) life cycle consumption curve
2) life cycle curve
This paper presents a method of utilizing life cycle curve which is obtained from Gompertz curve to establish the model which reflects the relationship between the development expenses and the development time of a weapon sys- tem.
利用由 Gompertz 曲线推导出的生命周期曲线,建立了武器研制费用—时间模型。
3) Life-cycle Curve
By analyzing its production and sales data over the past 25 years,the characteristics of three-wheeled vehicle life-cycle curve is discussed,and the market of three-wheeled vehicle which is now in recession is pointed out in this paper,then the suggestions for enterprise marketing strategy and government policy is put forward.
4) Life Cycle Hypothesis of Consumption
5) life cycle consumption function
6) Topic Index Curve