Hello, teacher Zhao Linjuan of Heilongjiang University. Teacher Zhao Linjuan participated in and presided over many scientific research projects and field construction of more than 20 protection projects in the Ministry of Science and Technology and National Cultural Heritage Administration. He presided over the completion of the sub-project "Research on Steam Cleaning Technology and Methods of Stone Cultural Relics" and won the first prize of the National Cultural Relics Protection and Technological Innovation Science and Technology category. Participated in the "Scientific Research on Traditional Technology of Color Painting Protection of Ancient Buildings" and "Research Project on Ancient Mural Desalination Technology" and won the second prize of Cultural Relics Protection Science and Technology in 2009 respectively. To sum up, Teacher Zhao Linjuan of Heilongjiang University is an excellent teacher and has made great achievements in the protection of cultural relics.