cost price differential

The value of oil reserves consists of price differential and cost differential from the point of view of the resource owner.

从资源所有者的角度看，石油储量价值由该储量的价格级差和成本级差构成。

Using method of qualitative theory of ordinary differential equation, studies economic harvesting model with variable price and cost for a single population.

利用常微分方程定性理论的方法讨论了价格成本变化的单种群经济捕获模型。

The supply price is relied on the cost for the emission reduction, the its differential coefficient of the cost , the capital value, and the planned emission reduction in the life cycle.

其大小取决于其国内减排成本、减排成本的变化情况、卖出减排量时资金的价值、以及国家在卖出减排量寿期内计划投产的减排能力。