演示实验选择的是否恰当，演示仪器设计的是否合理，会直接影响课堂教学的质量。
Experimental demonstration of the proper choice, demonstration equipment design is reasonable, it will directly affect the quality of classroom teaching.
用简单的演示实验模拟交流电动机旋转磁场，配合理论教学，改善了课堂教学效果。
Simple demonstration experiments simulating motor rotary field with theoretical teaching improve classroom instruction effect.
利用此课件取代课堂教学的演示实验，可以改进教学效果。
The didactical effect can be improved with the ware instead of demo experiment in teaching process.
指出让演示实验进入大学物理课堂教学的必要性，并举了一些易于操作的演示实验实例。
Its necessary letting demonstration experiments step into the teaching classroom of college physics. Some exercisable physics demonstration experiments are illustrated.
通过介绍两个微型化工演示实验的器械及演示过程，说明微型化工演示实验在丰富课堂教学内容，提高教学质量方面的重要意义。
Through introducing the appliance and the demonstrational process of two important meaning of it for using to enrich the content of classroom teaching and improve the teaching quality.
改进后的实验材料易得，装置简单，现象明显，能得到较好的课堂演示效果。
The installation of the experiment is simple. The phenomenon is quite clear. The experiment can get better results in classroom demonstrations.
改进后的实验材料易得，装置简单，现象明显，能得到较好的课堂演示效果。
The installation of the experiment is simple. The phenomenon is quite clear. The experiment can get better results in classroom demonstrations.
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