... Long-haul trunks：长途干线 Metropolitan trunks：市区干线 Rural exchange trunks：农用交换干线 ...
基于12个网页-相关网页
长途干线/局 optical communication system, long-haul terrestrial & local interoffice
长途交换干线 toll switching trunk
长途连接干线 toll-connecting trunk
电话系统长途局间干线 telephone system intertoll trunk
长途电话中继干线 trunk intertoll
光纤已是长途干线的首选传输媒质。
Optic fiber is now the preferred transmission medium for long-haul trunks.
EDFA不仅会在长途干线中广泛使用，也必然将会在接入网和未来的全光网络中扮演越来越重要的角色。
EDFA will be widely used in toll backbone network, and also will be important part in access network and the future full optical network.
文章就我国长途干线传输网的现状进行了分析，提出了优化意见和演进方案，最后对网络规划和标准制订工作提出了建议和设想。
This article analyses the current situation of our national long distance trunk transmission network and brings forward the optimization suggestion and evolve...
应用推荐