On November 29, 2019, at the invitation of Prof. Zhang, Professor Zhenkun Lei of Dalian University of Technology and his team members came to the institute for an exchange visit. During the conference, the two parties conducted active and in-depth discussions on the mechanical properties of materials, graphene capacitive sensors, etc., and exchanged views on research progress, scientific research platforms, and student training. The conference provided mutual opportunities for young researchers from both sides. A good platform for learning. After the meeting, Professor Zhenkun Lei and team members visited the Engineering Center of the Materials Department and the team laboratory, and had in-depth exchanges with the team teachers.