“synchronous digital hierarchy network”的概念、定义、翻译、参考文献-科学参考

单词	synchronous digital hierarchy network
释义	synchronous digital hierarchy network Encyclopedia 工学传送网释 synchronous digital hierarchy network同步数字传送网基于同步数字传送体系组建的传送网。由一些同步数字传送网元组成，在光纤上进行同步数字信息传输、复用和交叉连接的网络，实现网络管理、实时业务监控、不同厂商设备间的互通等功能，提高网络资源利用率。
随便看	urban public space Urban Public Transportation in Canada urban public transportation system Urban public transport lines urban public utility urban pulic space planning urban purple line urban rail air conditioning system urban rail communication systems urbanrail depot building urban rail environmental monitoring system urban rail passenger information system urban rail power supply system urban rail signalling system urbanrail station building Urban Rail Transit urban rail transit urban rail transit bridge urban rail transit combined sewerage system urban rail transit construction urban rail transit construction planning urban rail transit drainage system urban rail transit electromechanical device urban rail transit engineering urban rail transit facilities

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。