GB/T 14198一 2012 传声器通用规范
GB/T 14198一 2012.General specification for microphones.GB/T 14198规定了传声器的分类、要求、测量...
国家标准2023.07.28
GB/T 14198一 2012.General specification for microphones.GB/T 14198规定了传声器的分类、要求、测量...
国家标准2023.07.28
GB/T 32143-2015.Safety and environmental protection requirements for digital pro...
国家标准2023.07.28
GB/T 32145-2015.Projectable image area on 70 mm motion-picture film, 15/70 forma...
国家标准2023.07.28
GB/T 32144-2015.Projectable image area on 70 mm motion-picture film, 8/70 format...
国家标准2023.07.28
GB/T 32200-2015.Characteristic parameter and measurement of projection screens.1...
国家标准2023.07.28
GB/T 32631-2016.3Gbps serial data interface and source image format mapping for...
国家标准2023.07.28
GB/T 17147-2012.Measurement of audio-frequency noise voltage level in sound broa...
国家标准2023.07.28
GB/T 30350-2013.Television audience measurement guidelines.GB/T 30350规定了电视收视率调查样...
国家标准2023.07.28
GB/T 28431-2012.Specification for transport stream multiplexing and interfaces i...
国家标准2023.07.28
GB/T 28430-2012.Technical specification of data broadcasting in digital televisi...
国家标准2023.07.28