In techno-economic analysis about the many kinds of equipment renewal modes, it is a controversial issue on how to handle the old equipment's cash realizable value in the renewal decision-making.

在对多种更新方式进行技术经济分析时，如何处理旧设备更新决策时的可变现价值是一个有争议的问题。

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Comprehensive techno economic evaluation of an ore dressing plant is actually a decision making issue concerning multiple attributes.

选矿厂技术经济综合评价实质上是一个多属性(指标)决策问题。

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