例句
- SDH is carried over fiber optic networks. SDH通过光纤网络携带。
- SDH has many advantages compared with traditional PDH. 同步数字系列(SDH)比传统的准同步数字系列(PDH)具有许多明显的优点。
- Finally, transition mode from PDH to SDH is discussed. 最后讨论了PDH向SDH过渡的方式。
- The first report describes SDH and ATM technologies used in B-ISDN. 一是宽带综合业务数字网的同步数字系列（SDH）和异步转移模式（ATM）；
- Do you know that last year an aTM and SDH network was installed in Guangdong? 你知道去年广东省建了一个atm和SDH网吗?
- The activity of SDH was divided into 4 scales based on Niles classification. 光镜观察SDH 活性参照Niles 法分为4级。
THE END
