Purpose, application and skill in control system transformed from conventional banked relay to PLC control system on Model Z8640 hot box core shooter have been introduced.
介绍Z8640双工位四开模热芯盒射芯机常规继电器线路控制系统整改为可编程序控制器（PLC）控制系统的目的、应用和技巧。
In the practice of analyzing and designing of relay-contactor circuits, the critical-competition phenomenon is usually ignored, causing failures in reaching the intended purpose or even damages.
在分析和设计继电器-接触器控制电路时，往往忽视临界竞争现象，结果造成电气控制达不到预期目的，甚至造成事故。
In the practice of analyzing and designing of relay-contactor circuits, the critical-competition phenomenon is usually ignored, causing failures in reaching the intended purpose or even damages.
在分析和设计继电器-接触器控制电路时，往往忽视临界竞争现象，结果造成电气控制达不到预期目的，甚至造成事故。
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