A related layer is the field oxide, which provides isolation from other device structures.
一个相关层是场氧化层，使其与其它器件结构分离。
Finally, we focus our mind on the field devices layer of the industrial control system, study the device control data collection and the data traffic in detail.
最后，本文重点放在工业以太网的现场设备层，对底层设备的控制、对现场数据的采集、对数据的网络通信都分别进行了详细的讨论与研究。
The middle layer is composed of the field control unit device PLC with Ethernet interfaces.
中间层由带以太网接口的现场控制单元设备PLC组成；
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