杆秤是根据杠杆平衡原理制造的称量工具,在我国从古至今,杆秤都被广泛地使用着.但是,随着科技的发展,它已被电子秤等现代称量工具逐步取代,只有一些流动摊贩还在使用它.下面向同学们介绍制作杆秤(代盘)的方法,希望同学们动手试制一下,加深对杆秤的了解. The steelyard is a weighing tool that is manufactured according to the principle of leverage. In China, the steelyard has been widely used. However, with the development of science and technology, it has been gradually replaced by modern weighing tools such as electronic scales, and only some flows. The street vendor is still using it. The following describes the method of making steelyard scales (generation plate) to the students. I hope that the students will try it out and deepen their understanding of the steelyard.