mean value function

例句：

1. 1. In economics, the mean value function is used to determine the optimal allocation of resources.
   在经济学中，平均价值函数被用来确定最优资源分配。
2. 2.The mean value function helps us understand how different variables affect each other.
   平均价值函数有助于我们理解不同变量如何相互影响。
3. 3.The mean value function has been extensively studied in various fields, including finance and engineering.
   平均价值函数在金融和工程领域得到了广泛的研究。