论文部分内容阅读
作功冲程是汽油机工作过程中的重要组成部分，也是内能转化为机械能的重要环节．为了让学生亲眼观察到这一过程，加深对它的理解，我自制了汽油爆炸演示器，收到了良好效果．具体做法如下． 首先，找一个带盖的塑料盒（无螺旋丝口），作为“气缸”，在盒口处涂上凡士林，使塑料
The power stroke is an important part of the gasoline engine’s working process, and it is also an important part of the internal energy conversion into mechanical energy. In order to allow students to observe the process with their own eyes and deepen their understanding of it, I made a gasoline explosion demonstrator and received good results. The specific approach is as follows. First, find a plastic box with a lid (without screw thread) as a “cylinder” and apply Vaseline at the mouth of the box to make plastic.