Transportation
| Thu 28 May 2026
Beijing, May 28 -- Chongqing Rail Transit Design and Research Institute has submitted a patent application for Tunnel Structure Comprising Wall-embedded Cover Arch. Zou Guangjiong, Peng Hui, Zhou Jie, Yi Yi, Cheng Zhiyin, Mei Lesheng, Wang Xianxing, Hu Qian, Ding Qile, Huang Yaling, Bai Hanshi and Liu Qiao developed the inventio..