Star topology , ring , tree and bus topology what their characteristics?
星形拓扑，环形，树形和总线拓扑各自的特点是什么？
This system features of wireless data transmission and topology with star network.
该系统是一个采用无线数据传送，拓扑结构为星型的网络。
This system features of wireless data transmission and topology with star network.
该系统是一个采用无线数据传送，拓扑结构为星型的网络。
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