On the morning of June 5, Professor Chen Zhenyu from the Institute of Mineral Resources of the Chinese Academy of Geological Sciences was invited over to give an academic report entitled Basic Principles of Electron Probe and Its Geological Applications. Associate professor Sun Zhenjun hosted the symposium. Some teachers from the School of Geosciences and the School of Ecology and Environment attended the symposium. After the symposium, Professor Chen visited our Lab of Electron Probe and provided a three-day training for our faculty.