
Audio, Video And Multimedia Systems And Equipment - Digital Television Accessibility - Functional Specifications
出版:Nederlands Normalisatie Instituut

專家解讀視頻
2017 [01/07/2017]
IEC 62944 : 1ED 2016 - Identical
EN 62944 : 2017 - Identical
EN 62944 : 2017 - Identical
IEC 62944 : 1ED 2016 - Identical
EN 62944:2017 - Identical