
Heating systems in buildings - Method for calculation of system energy requirements and system efficiencies Part 1: General
出版:German Institute for Standardisation (Deutsches Institut für Normung)

专家解读视频
Heating systems in buildings - Method for calculation of system energy requirements and system efficiencies Part 1: General
出版:German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频