YD/T 1013-1999.Cabling system for building general electronic perl formance tech...

行业标准2023.08.03

YD/T 1012-1999.Node clock set of digital synchronization network and its timing...

行业标准2023.08.03

YD/T 1011-1999.Technology requirement and test method of standalone synchronizat...

行业标准2023.08.03

YD/T 1020.2-2004.Characteristics of termite resistant jacketing materials for el...

行业标准2023.08.03

YD/T 1020.1-2004.1范围YD/T 1020.1规定了电缆光缆用防白蚁材料聚酰胺塑料的要求、试验方法、包装和标志等。YD/T 1020.1适用于电...

行业标准2023.08.03

YD/T 1018-1999.Digital circuit multiplication equipment using ADPCM and DSI.1范围Y...

行业标准2023.08.03

YD/T 1017-1999.Network node interface for the Synchronous Digita! Hierarchy.1范围Y...

行业标准2023.08.03

YD/T 1016-1999.Technical condition for PDH optica: line terminals used in access...

行业标准2023.08.03

YD/T 1039.1-2000. 900/1800MHz TDMA Digital Cellular Mobile Telecommunication Net...

行业标准2023.08.03

YD/T 1039.1-2005.900/1800MHz TDMA digital cellular mobile telecommunication netw...

行业标准2023.08.03