The power distribution network can be simplified as switch node network. By applying electric network graphic theory its adjacent node matrix and node information matrix can be derived.

忽略电网中的其它元件，将电网从结构上简化为以开关当作节点的网络，应用电工网络图论原理建立节点的邻接矩阵和节点信息矩阵。

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Frame Relay Switch Node?

帧中继转换节点FRSN ？

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Additionally, the switch, software, and node of the system were upgraded.

CNN: IBM commercializes supercomputer

Every node in the enterprise and metro will have to switch at 10 Gbps to handle the seachange from narrowband voice and slow data applications to various forms of full-motion video.

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