Anslyzing energy efficiency of system and comparing conventional energy simply, The author put forward efficiency-cost ratio of project and pre-evaluation of payback time.
对系统能效分析及与常规能源简单对比，提出项目费效比与回收年限预评估。
Anslyzing energy efficiency of system and comparing conventional energy simply, The author put forward efficiency-cost ratio of project and pre-evaluation of payback time.
对系统能效分析及与常规能源简单对比，提出项目费效比与回收年限预评估。
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