- 同步數(shù)位階層
- 同步數(shù)字分層結(jié)構(gòu),同步數(shù)字傳輸體系
- 同步數(shù)字體系
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- Frame structure for synchronous digital hierarchy signal
同步數(shù)字體系信號(hào)的幀結(jié)構(gòu) - Synchronous digital hierarchy cross - connect sdxc
同步數(shù)字系列交叉 - Synchronous digital hierarchy bit rates
同步數(shù)字體系的比特率 - Basic multiplexing structure for synchronous digital hierarchy signals
同步數(shù)字體系信號(hào)的基本復(fù)用結(jié)構(gòu) - Specifications for synchronous digital hierarchy multiplex equipment
同步數(shù)字體系sdh復(fù)用設(shè)備技術(shù)要求 - Pdh pseudo - synchronous digital hierarchy
準(zhǔn)同步數(shù)字系列 - Pdh pseudo synchronous digital hierarchy
準(zhǔn)同步數(shù)字序列 - Pe pseudo - synchronous digital hierarchy
準(zhǔn)同步數(shù)字系列 - Synchronous digital hierarchy , sdh
同步數(shù)位階層 - Sdh synchronous digital hierarchy
同步數(shù)字系列