
Hollow Metallic Waveguides; Circular Waveguides, Dimensions
出版:German Institute for Standardisation (Deutsches Institut für Normung)

專(zhuān)家解讀視頻
80 [01/03/1980]
HD 245.2:1982 - Identical
HD 123.4:1975 - Identical
IEC 60153-4 Ed. 2.0 - Identical