Xiong Yeteng (C), a technician from the Dunhuang Academy's digital preservation team, and his colleagues look at the newly collected pictures in a cave of the Mogao Grottoes in Dunhuang, northwest China's Gansu Province, April 25, 2023. A group of young technicians have sought to use digital technology to ensure the permanent preservation and sustainable use of cultural relics in the Mogao Grottoes, a UNESCO World Heritage site in Dunhuang. (Xinhua/Chen Bin)