Technicians of Nanchang Railway Bureau overhaul the train wheelsets which will be used for Spring Festival travel rush in Nanchang, capital of east China's Jiangxi Province, Jan. 12, 2017. Technicians in charge of the assembly, processing and overhaul of train wheelsets work overtime to ensure the supply during the Spring Festival travel rush. About 2.98 billion trips are expected to be made during China's 2017 Spring Festival travel rush between Jan. 13 and Feb. 21. (Xinhua/Lu Xianglian)
