成本方程

作者在现有热经济学中的能量成本方程中加入总环保费用一项，从而对于生态效应的考虑能够实现热经济学上的定量分析。

By incorporating an item of total expenses of environmental protection into the energy cost equation of the existing thermoeconomics one can perform a quantitative analysis in thermoeconomics with ecological effects being taken into account .

从定性和定量的角度描述了冲击的成本，并建立了成本方程。

The cost function was founded by the description of the cost the shock from both quantity and quality perspective .

在对成本和需求进行动态分析的基础上，建立了系统交通成本的演化方程组，推导出边际需求对交通流速度的约束条件。

Focusing on the effects of decreasing toll on traffic flow and system cost , this paper deals with the cost evolution models by dynamically analyzing the cost and demand .

以寻求串级萃取最低生产成本的工艺条件为最优化目标，通过将萃取工艺参数与随之会发生变化的生产成本关联，建立了分馏萃取最低成本优化萃取比方程。

Based on the optimization goal searching for extraction parameters of minimun production cost , a novel equation for calculating optimized extraction factor of minimum production cost in fractional extraction was proposed .