大学物理 ›› 2021, Vol. 40 ›› Issue (2): 32-35.doi: 10.16854 /j.cnki.1000-0712.200070
郑雪丽,李巧梅,汪涛,韩忠,雷迪
1. College of Physics,Chongqing University,National Demonstration Center for Experimental Physics Education,Chongqing 401331,China; 2.College of Aeronautics and Astronautics,Chongqing University,Chongqing 401331,China