1) SDH fiber ring network
SDH光纤环网
1.
Availability assessment of SDH fiber ring network;
SDH光纤环网的有效性评估
2) SDH fiber communication network
SDH光纤通信网
3) SDH fibe-optics communication network
SDH光纤通信网络
4) SDH self-healing ring or optic fiber ring
SDH自愈环或光纤环
5) SDH loop
SDH环网
1.
Synchronizing modification of the SDH loop in central China power group;
华中电力集团公司SDH环网的网同步改进
6) small SDH optical fiber communications ring networks
小型SDH光纤通信网
1.
By the way of analyzing the general synchronization way and protection way of SDH networks, make an inquiry into the synchronization way and protection way that the small SDH optical fiber communications ring networks ought to select.
通过对常见的SDH网同步方式和保护方式的分析 ,介绍了小型SDH光纤通信网应选择的同步方式和保护方式。
补充资料：SDH
癸二酸二酰肼简称SDH，分子量230.31, 用作环氧树脂的潜伏性固化剂．参考用量20～35phr．固化条件120～160 ℃／4～0.5h。比双氰胺固化温度低，固化时间短，耐水性好，粘接强度高。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条