methods_and_techniques_of_drawing

1.The paper took Flange Circuit drawing for example, described the methods and techniques of Circuit Drawing in CAD, meanwhile depicted the application of Block in Circuit drawing .
文中以一电路图为例，描述了CAD绘制电路图的体例与技巧，同时描述了块在绘制电路图时的应用。
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2.The paper took Flange Circuit drawing for example, described the methods and techniques of Circuit drawing in CAD, meanwhile depicted the application of Block in Circuit drawing.
文中以一电路图为例，描述了CAD绘制电路图的方法与技巧，同时描述了块在绘制电路图时的应用。
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3.These include e. g. projection methods, drawing and modelling techniques or the tools of software applications.
这些包括诸如投影的方法，绘画和建模的技术或软件应用的工具等。
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