YD/T 5094-2005.Specifications of Engineering Design for No.7 Signalling Network. 1总则 1.0.1为了加强对No.7信...
YD通讯标准
YD通讯标准
YD通讯标准
YD/T 5094-2000 No.7 信令网工程设计规范
YD/T 5094-2000.Specifications of Engineering Design for No.7 Signalling Network. 1总则 1.0.1为了加强对No.7信...