synthetic validity

By combining availability with capacity efficiency, the concept of comprehensive efficacy is put forward to test the total effect of mine production.

将系统的时间利用率（有效度）和能力利用率（功效度）相结合，提出了综合效能度的概念和计算方法，以检测矿井运行的总体效果，并建立了功效度和有效度计算模型。

Puts forward a selection method called the synthetic effect measure method and presents its calculation steps.

建立了以经济、技术、人文环保指标为内容的空调冷热源方案评价指标体系 ,提出了方案优选综合效果测度法 ,并介绍了该方法的计算步骤。