注射器的妙用歙县桂林中学张丽娟初中物理教学离不开做实验，然而农村中学物理仪器奇缺，很多实验按课本要求是无法完成的。因此，我常用替代品，其中用注射器代替多种仪器进行实验教学就是一例，现介绍用它做演示实验的方法，供农村初中的同行们参考（注射器医药门市部有... Magical Syringes Guixian Middle School Zhang Lijuan junior high school physics teaching can not do without the experiment, however, the lack of rural high school physics instruments, many experiments can not be completed according to the textbook requirements. Therefore, I often use alternatives, including the use of syringes instead of a variety of instruments for experimental teaching is an example, it is introduced to do with demonstration experiments for rural junior high school colleagues for reference (syringes ...