p16(2-3基本立体)-Model(1).pdf 完成本页第1题,第2题(2),(4)两小题 说明: 1 、第一题是典型的同轴回转体,要根据回转体的特性,完成俯视图,补全左视图漏线,注意相切过度的地方不要画线; 2 、用点画线表示拉伸体对称面,不可见投影用虚线表达,绘制第2(2)的正等轴测图,2(4)的轴测图随意; Complete question 1 and 2(2,4) Note: questinon 1 is a typical problem of revolving solid, so front view and top view are same, some circles are missing in left side view, please complete it carefully pay attention, use center line to represent symmetric plane, and finish isometric drawing for sub question 2(2), isometric drawing of sub question 2(4) is not required, but if you have time and you can, just finish it.