Transportation
| Wed 12 Aug 2026
Beijing, Aug. 12 -- China Railway Liuyuan Group has sought patent for Subway Tunnel Cavity Position Detection and Treatment Device. This invention was developed by Qi Taimeng, Yang Yongzhen, Yue Huiting, Wu Qiang, Yang Kun, Li Xiaofeng, You Haoyang, Fu Junfeng, Liu Leilei, Wei Kaikai, Gao Yahui, Huang Xiaodong, Geng Shuangjie, J..