“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	period of light variation period of limitation of administrative litigation period of military government period of moon's node Period of Political Instruction Period of Political Instruction Constitution of Republic of China period of pseudorandom numbers period of revolution period of revolution, orbital period Period of Rex in Rome period of rotation Period of Southern and Northern Courts period of submergence tolerance period of translations periodogram periodogram analysis periodogram detector periodogram spectrum estimation periodograph periodometer periodontal abscess periodontal abscesses periodontal disease periodontal disease and system diseases periodontal treatment agent

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