通信网络可以按照其物理排列或拓扑结构来分类。有三种常见的拓扑结构：星型、总线型和环型。
Communication networks can be classified in terms of their physical arrangement or topologies. Three common topologies are the star, bus, and ring.
系统采用总线型的拓扑结构和分布式的框架结构。
The system adopts topology structure of bus type and distributed frame.
有三种常见的拓扑结构：星型、总线型和环型。
总线型的网络拓扑结构、令牌传递总线方式的运用，确保了系统数据采集网络通信顺畅。
The bus network topology structure and token accessing control are used to solve the capability problem of the network communication in data collection.
总线型的网络拓扑结构、令牌传递总线方式的运用，确保了系统数据采集网络通信顺畅。
The bus network topology structure and token accessing control are used to solve the capability problem of the network communication in data collection.
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