Zhang Xinyu, a cultural relic repair technician, communicates with her colleague on the preservation of painting and calligraphy at Liaoning Provincial Museum in Shenyang, capital of Northeast China's Liaoning province, May 17, 2016. There are a group of cultural relic repair technicians at the heritage conservation center of Liaoning Provincial Museum. Most of the items displayed at the museum have been dealt with by them. [Photo/Xinhua]