Transportation
| Tue 28 Jul 2026
Beijing, July 29 -- China Railway First Survey & Design Institute Group has submitted a patent application for Isolation Switch Intelligent Monitoring System. This invention was developed by Li Qingjun, Li Fei, Tian Shengping, Song Yang, Li Shuai, Nie Jingxin, Zhang Xuewu, Li Chong, Wang Yuhuan, Jing Yi, Jin Guang, Zhang Cheng a..