实证研究证明，联产品生产的协同作用也是产品成本的驱动因素。

Through researching of case, we can prove that the cooperation function is one of drivers for cost.

youdao

实证研究证明，联产品生产的协同作用也是产品成本的驱动因素。

Through researching of case, we can prove that the cooperation function is one of drivers for cost.

youdao