May will be too long because of the communication line secondly.

其次可能会因为通讯线路过长.

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Keep the communication line with God open.

用上帝公开保存沟通线.

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The upper controller and PLC using RS - 422 communication line composes industrial control networks.

上位机与PLC用RS - 422通讯线构成工业控制网. 由工业PC+PLC 组成的自动控制系统,结构简单,操作方便.

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The cost for a communication line between two stations proportional to the length of the line.

两个通讯站间通讯线路的费用与线路的长度成正比.

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The data communication line may by two of configuration way connection: Point - to - point and multi - spot line connection.

数据通讯线路可以以两种配制方式连接:点 到点和多点线路连接.

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