...学法指导 [gap=853]re of things child; The class changes the idea; Lower primary school engagement; Research method instruction ...
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Research purposes: the purpose was to make readers to learn the basic instruction, control way, programming concept and programming method through the analysis of several control programmes of PLC.
研究目的：通过对几个PLC控制程序的分析，使读者了解PLC程序的基本指令、控制方式和编程思想，初步掌握PLC的编程方法。
The research in this paper can provide the method instruction for the application of the environmental impact evaluation methods and the determination the reference environmental model.
本文的研究可以为污染物环境影响评估方法的应用以及火用分析方法中基准环境模型的确定提供指导与参考。
By means of the method of natural instruction experiment, the research examined the effects of psychological health education in health belief, health behavior and health level.
本文采用自然教学实验的研究方法，探讨心理健康教育对高师生健康信念、健康行为和健康水平的影响。
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