On the morning of March 8, teachers from National University of Defense Technology Xiong Wei, Professor Liu Dan, and Dr. Peng Miao came to the Institute for discussion. Teachers Song Xiaoxian and Zhang Jingjing from our institute, as well as teacher Zhang Tao and Dr. Yue Xuejie from the School of Chemical Engineering participated in the exchange. Teacher Song Xiaoxian welcomed the visiting guests and introduced the overall scientific research situation of the School of Mechanical Engineering. Teacher Zhang Tao introduced the scientific research situation of the School of Chemical Engineering. Teacher Xiong Wei first fully affirmed the achievements of the school, and introduced the overall scientific research situation of the National University of Defense Technology. Subsequently, the two parties conducted extensive exchanges on the materials of the micro-nano-scale quantum dot core-shell structure, and discussed in depth on the material preparation of the micro-nano-scale quantum dot core-shell structure and cooperation projects. And hope that on this basis, the two sides will carry out more cooperation and discussions. Finally, teacher Xiong Wei et al. visited the laboratories of the Research Institute, the School of Mechanical Engineering and the School of Chemical Engineering.