packet switching data network 分组交换数据网络 ; 分封交换数据网路
Packet Switching Public Data Network 分组交换公用数据网
public packet switching data network 公用分组交换数据网
packet t switching data network 分组交换数据网络
Therefore, there needs to be a compression taking place to compact the voice data into a considerable size before it gets transmitted over a packet switching network.
我们必需有发生，以紧凑的声音压缩成一个具有相当规模的数据，然后吃了分组交换传输网络。
And through Railway Packet Switching Network the data can access the Railway Branch Locomotive Depots.
再利用铁路分组交换网完成机车运行数据到机务段的实时传输。
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