可行性研究和后评价经济评价方法探讨——以某石油集团下属专业公司非安装设备购置项目为例
가행성연구화후평개경제평개방법탐토——이모석유집단하속전업공사비안장설비구치항목위례
Feasibility study and post-assessment of economic benefit——Example of the purchase of moveable equipment by a specialized subsidiary of xx oil corporation