一个网络往往由若干个大大小小的子网组成，集成了多种网络系统、平台，并且包括了不同厂家、公司的网络设备和通信设备等，同时，网络中还有许多网络软件提供各种服务。
A network is most likely to be composed of several different subnets, and integrate many kinds of system and platform, and include network and communication devices from different manufacturer.
一个网络往往由若干个大大小小的子网组成，集成了多种网络系统、平台，并且包括了不同厂家、公司的网络设备和通信设备等，同时，网络中还有许多网络软件提供各种服务。
A network is most likely to be composed of several different subnets, and integrate many kinds of system and platform, and include network and communication devices from different manufacturer.
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