论文部分内容阅读
在现代化的生产中,无论是制造一台机器或建造一幢房屋,事先都必须根据使用要求进行设计,绘出图样,然后,按图纸进行制作或施工。由于机械或建筑物的形状、大小和做法不是用语言或文字所能描述清楚的,用图样就比较形象、直观。因此,图样是表达设计构思、解决空间关系、进行技术交流的有力工具,也是指导和组织施工的重要依据。那么图样怎样绘呢?《工程制图》就是研究图示法和图解法的基本理论——投影原理,
In modern production, whether it is the manufacture of a machine or the construction of a house, it must be designed in advance according to the requirements of use, draw drawings, and then make or construct according to the drawings. Because the shape, size, and practice of a machine or building cannot be described in terms of words or words, the use of drawings is more visual and intuitive. Therefore, drawings are powerful tools for expressing design concepts, solving spatial relationships, and conducting technical exchanges. They are also an important basis for guiding and organizing construction. So how do the drawings painted? “Engineering drawing” is to study the basic theory of graphic and graphical methods - the principle of projection,