它是在环网上增加计算机接口单元，通过接口机、光纤和数据交换机将生产过程的实时数据引入历史数据平台。
Computer interface Unit is added to I NFI net and the real-time data of manufacture process are retrieved to the historical data platform through interface PCs, fibers and switches.
它是在环网上增加计算机接口单元，通过接口机、光纤和数据交换机将生产过程的实时数据引入历史数据平台。
Computer interface Unit is added to I NFI net and the real-time data of manufacture process are retrieved to the historical data platform through interface PCs, fibers and switches.
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