Electronics
| Sat 21 Mar 2026
Beijing, March 21 -- Huaneng Lancang River Hydropower has submitted a patent application for Voice Prompt Device Capable of Preventing Mistaken Entering Interval and Having Human Body Induction Function. Zhou Xiwen, Fu Shixi, He Lifei, Li Dingli, Tong Liang, Li Liangqing, Zhang Lei, Zhu Youjiao, Li Fengbo, Yu Jie, Chen Shaohua, ..