The introduce of the Pre-control chart is analysed and its format application rules and probability analysis are discussed in this paper.
本文分析了预控图的提出，论述了预控图的格式、使用规则和概率分析。
The system principle is analysed from the log principle figure, the software flow chart is also plotted.
结合航星计程仪的原理图，文章分析了系统原理并给出了软件流程图。
In the article the simply and reliable testing-circuit is desired and analysed by the program flow chart.
设计了简单可靠的检测电路，并用程序流程图加以分析。
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