“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	Electronic commerce product strategy Electronic commerce public service center electronic commerce regulation/regulation on electronic commerce Electronic commerce regulations /E-commerce regulations Electronic commerce risk management electronic commerce security electronic commerce strategy evaluation electronic communications system electronic competition electronic component pastes electronic component tester electronic computer electronic conduction electronic configuration electronic configuration in molecule electronic constant energy suface electronic constant energy surface electronic consumer electronic consumer, e-consumer electronic contract electronic control electronic control distributor type injection pump electronic control of magnetism electronic counting decade electronic coupling

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