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Service-based capacity strategy for manufacturing service duopoly of differentiated prices and lognormal random demand .

制造服务产业以产能服务为考量的竞争分析：差异品质与对数常态需求之双占情境。

The distribution of returns over periods of , say , one year would be better approximated by a lognormal distribution .

以一段期间，比方说，以一年为期间的回报率的分布将更近似对数正态分布。

Component 's life and repair time includes six kinds ofdistributions : exponential , normal , lognormal , gamma , beta and weibull .

元件寿命分布和维修时间分布包含六种型式：指数分布，正态分布，对数正态分布，伽玛分布，贝塔分布和威布尔分布。

On the hypothesis of the underlying asset price following lognormal process , we can extend the way of asset price logprofit process approach to multi-asset options pricing .

在标的资产价格遵循对数正态过程假设下，把资产价格对数收益过程逼近方法扩展到多资产期权定价上。