YD/T 5089-2005.Specifications of Engineering Design for Digital Synchronization Network. 1总则 1.0.1YD...
YD通讯标准
YD通讯标准
YD通讯标准
YD/T 5089-2000 数字同步网工程设计规范
YD/T 5089-2000.Specifications of Engineering Design for Digital Synchronization Network. 1总则 1.0.1为了...