
Electrical Engineering; Classification Of Environmental Conditions; Part 2: Environmental Conditions Appearing In Nature; Precipitation And Wind
出版:German Institute for Standardisation (Deutsches Institut für Normung)

專家解讀視頻
Electrical Engineering; Classification Of Environmental Conditions; Part 2: Environmental Conditions Appearing In Nature; Precipitation And Wind
出版:German Institute for Standardisation (Deutsches Institut für Normung)
專家解讀視頻