On September 26, 2024, Wen Ruijuan, a full-time research assistant of the Institute of New Concept Sensors and Molecular Materials, gave a training session on the use of the cross-frequency/time-domain time-resolved spectroscopy detection system to graduate students in the lecture hall and the Ultrafast Laboratory, covering topics such as usage tips, reservation method, system introduction, and testing techniques. Shao Yangtao and other 11 doctoral and master’s students from the institute participated in the training and conducted hands-on practice under Wen Ruijuan’s guidance.