Therefore, there needs to be a compression taking place to compact the voice data into a considerable size before it gets transmitted over a packetswitchingnetwork.
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。
2
And through Railway PacketSwitchingNetwork the data can access the Railway Branch Locomotive Depots.