《机械制图》是机械、机电类专业的基础课程,其主要教学目标是培养和提高学生的空间想象和思维能力,要求学生能够根据所给的二维平面图形想象出其轴测图,并可以确定各个基本几何体之间的位置关系,从而完成识图和绘图过程。但对于一部分空间想象力不是很好的学生来说,看懂一个题目有相当大的 Mechanical drawing is a basic course of mechanical, electromechanical specialty. Its main teaching goal is to cultivate and improve students’ spatial imagination and thinking skills. Students are required to be able to visualize their axonometric images according to the given two-dimensional plan. Determine the relationship between the basic geometry of the relationship between the completion of knowledge mapping and drawing process. But for some students whose space imagination is not very good, it is quite significant to understand a topic