YD/T 5150-2007
Acceptance specification of MSTP Based on SDH Engineering for Local Optical Fiber Cable Transmission Project 基于sdh的多业务传输节点(mstp)本地光缆传输工程验收规范 |
SY/T 5935-2007
The checking items and technical specifications for SYSTEMⅡ/SYSTEM2000/IMAGE seismic data acquisition system SYSTEM Ⅱ/SYSTEM2000/IMAGE地震数据采集系统检验项目及技术指标 |
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