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| Fri 13 Mar 2026
Beijing, March 14 -- China Unicom and Shanghai Rural Commercial Bank Co Ltd have submitted a patent application for Method and System for Detecting Ponding Lodging Risk of Outdoor Advertising Board. Zhang Jianfeng, Dai Chenglin, Li Xiaoliang, Gao Yanan, Chen Qiang, Yang Danyang, Zhu Yu, Han Zhe and Cheng Zhiming developed the in..