Dr Lian Pei from Tianjin University wants to apply for a master's degree. Official website, School of Earth System Science, Tianjin University, shows that the joint training period for doctoral students is 6-24 months, and they must be full-time doctoral students in the college, and they can apply as soon as they get their doctoral degrees, and they are not over 35 years old (born after 1987 1). The units studying abroad include the Institute of Biogeography (IBG-3) and ForschungszentrumJülichGmbH of ulrich Research Center in Germany, as well as the MaxPlanckInstituteforChemistry in Germany.