数据中心可以占用一个房间的建设，一个或多个楼层，或整个建设。

A data center can occupy one room of a building, one or more floors, or an entire building.

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系统适合于一个场所多机联网控制、多楼层设备联机控制，或对多个特定的场所进行联网控制等。

The node can be applied in control network which is composed of many special sites or industrial workshops.

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