笔者集多年维修经验，结合理论知识，总结了系统部分常见故障的查找程序。
Based on author's maintaining experience of many years, by using the theoretical knowledge concerned, the seeking process of common breakdown of hydraulics…
空分装置控制系统采用非iec标准的984梯形图编程，并且梯形图程序复杂，故障查找困难。
The control software adopts 984 Ladder Diagram. Its complicated logic is difficult to understand, and it doesn't accord with IEC programming language.
空分装置控制系统采用非iec标准的984梯形图编程，并且梯形图程序复杂，故障查找困难。
The control software adopts 984 Ladder Diagram. Its complicated logic is difficult to understand, and it doesn't accord with IEC programming language.
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