1) SDH self-healing network
SDH自愈网
2) SDH self-healing ring network
SDH自愈环网
1.
Research on availability module in SDH self-healing ring network
SDH自愈环网有效性模型的研究
2.
Based on the work of SDH self-healing ring network theory, system performance analysis, described in the pilot protection SDH self-healing ring network signal transmission in the principle and system components, SDH self-healing ring network with the traditional c.
本文通过对SDH自愈环网的工作原理、系统性能进行分析，阐述了纵联保护信号在SDH自愈环网中传输的原理和系统组成，SDH自愈环网与传统的光纤纤芯传输保护信号相比具有哪些优越性，以及SDH自愈环网在微机光纤保护中应用的注意事项。
3) SDH ring self correcting net
SDH环形自愈网
4) SDH SHR
SDH自愈环
1.
An Analysis on the Span and Ring Protection Transform of SDH SHR;
SDH自愈环的跨距和环路保护转换分析
5) SDH self-healing ring or optic fiber ring
SDH自愈环或光纤环
6) self-healing network
自愈网
1.
Application of self-healing network for railway district communications;
铁路区段通信自愈网的应用
2.
Characteristic Analysis of SDH Self-Healing Network Ring;
SDH环型自愈网的特性分析
补充资料：SD
分子式C10H10N4O2S，分子量250.28。俗称SD。又称对氨基-N-2-嘧啶基苯磺酸胺。白色或微黄色结晶粉末。无臭。熔点252～256℃。在空气中稳定，光照时易变成深色，难溶于水，微溶于乙醇、丙酮和乙醚。易溶于稀无机酸和苛性碱溶液。能治疗肺炎球菌、溶血性链球菌、脑膜炎球菌等的感染。适宜于小儿用药。也常制成水溶性的钠盐，用作注射针剂。可由对乙酰氨基苯磺酰氯与2-氨基嘧啶反应，然后再经水解制得。
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参考词条