Transportation
| Fri 29 Sep 2023
Beijing, Sept. 30 -- CN Railway Siyuan Survey & Des has submitted a patent application for visual display system for operation and maintenance data of rail transit vehicle base. Guo Qin, Xie Qin, Zhou Xiaobin, Shi Minghong, Liao Yongliang, Yao Yingfeng, Liu Ao, Luo Lilun, Shu Dong, Wang Jun, Hu Lixiang, Dai Gang and Guo Wenhao d..