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plesiochronous digital hierarchy中文是什么意思

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用"plesiochronous digital hierarchy"造句"plesiochronous digital hierarchy"怎么读"plesiochronous digital hierarchy" in a sentence

中文翻译手机手机版

  • 近乎同步数位阶层
  • 准同步数字体系
  • 准同步数字系列

例句与用法

  • Pdh plesiochronous digital hierarchy
    准同步数字体系
  • Pdh : plesiochronous digital hierarchy
    准同步数字系列
  • Plesiochronous digital hierarchy
    准同步数字架构
  • Training - based simulation model and algorithm of plesiochronous digital hierarchy fiber communication system
    基于训练的准同步数字系列光纤通信系统仿真模型与算法
  • The sdh ( synchronous digital hierarchy ) is originally developed from the pdh ( plesiochronous digital hierarchy )
    它是目前光纤通信系统中应用最广泛的数字传输体制。
  • Sdh ( synchronous digital hierarchy ) has some primary advantages such as synchronous multiplexing , standard optical interface and strong network management compared with pdh ( plesiochronous digital hierarchy )
    同步数字体制( sdh )与传统的伪同步数字体制( pdh )相比,有三大核心优势,即同步复用、标准光接口和强大的网管能力。
  • Before the 1990s , the digital transmission equipment was based on the technical standards of plesiochronous digital hierarchy ( pdh ) . in order to connect the switch to pdh transmission equipment , the switch side needs lots of terminal equipment of the primary rate , i . e . , 2048 kbits ( 2m ) switching terminal circuits in compliance with itu - t standards ( e . g . s1240 s dtm trunk module and axe10 s etc module ) and ansi - standard - based 1544 kbits ones
    在90年代初期以前,数字传输设备是建立在pdh ( plesiochronousdigitalhierarchy )技术标准上,为了连接交换机到pdh传输设备上,在交换机侧需要大量的符合基群速率的终端设备,即符合itu - t标准的2048kbits ( 2m )交换终端电路(如s1240的dtm中继模块, axe10的etc模块)和符合ansi标准的1544kbits交换终端电路等。
用"plesiochronous digital hierarchy"造句  

百科解释

The plesiochronous digital hierarchy (PDH) is a technology used in telecommunications networks to transport large quantities of data over digital transport equipment such as fibre optic and microwave radio systems. The term plesiochronous is derived from Greek plēsios, meaning near, and chronos, time, and refers to the fact that PDH networks run in a state where different parts of the network are nearly, but not quite perfectly, synchronised.
详细百科解释
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