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| Sat 23 May 2026
Beijing, May 23 -- Inner Mongolia University has submitted a patent application for Cold Region Tunnel Freeze Injury Diagnosis, Risk Grading and Control Method and Application Thereof. Zhao Xin, Gao Yuan, Zhang Hongwei, Zhang Le, Wang Xueying, Fu Chao, Wang Yueshan, Zhou Fan, Xue Fei, Cao Shaofei, Ma Laigang, Zhang Lifang, Liu M..