• SDH网络设备必须具有STM - N线路信号中提取定时参考功能

    The devices in SDH network must have the function of extracting timing reference from STM-N.

    youdao

  • SDH网络设备必需具有STM - n线路信号中提取定时参考功能

    The devices in SDH network possess the function of extracting timing reference from STM-N.

    youdao

  • SDH网络设备必需具有STM - n线路信号中提取定时参考功能

    The devices in SDH network possess the function of extracting timing reference from STM-N.

    youdao

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