Photo taken on Sept. 17, 2019 shows a long stator linear motor and an electromagnet of magnetic-levitation train with a designed speed of 600 kph unveiled by the CRRC Zhuzhou Electric Co., Ltd. in Zhuzhou City, central China's Hunan Province. CRRC Zhuzhou Electric Co., Ltd. unveiled the key components of its magnetic-levitation train with a designed speed of 600 kph in central China's Hunan Province Tuesday. (Photo by Chen Sihan/Xinhua)