The research way in this paper is introducing principle firstly and doing demonstration analysis secondly.
本文的研究方法包括文献研究、实证研究、定性、定量分析等。
2
By the improvement of demonstration experiment on optics, we able to observe the optical path and further understand to optical principle.
通过对光学演示实验的改进，使我们能够观察到光路，加深了对光学原理的理解。
3
This paper expounds the principle and method of economic analysis and demonstration on overhaul of equipment incorporating practical instances and problems.