The input-output analysis method has been applied to production-management plan of mine in this paper.

将投入产出分析法应用到矿山中，编制矿山生产经营计划。

youdao

The input-output analysis method has been applied to production-management plan of mine in this paper.

将投入产出分析法应用到矿山中，编制矿山生产经营计划。

youdao