LANZHOU, June 20 (Xinhua) -- A type of self-powered and self-calibrated sensing system has been newly developed by Chinese researchers, casting light on real-time environmental monitoring in diverse ...

HARBIN, June 20 (Xinhua) -- A total of 23 people are deemed to be responsible for a coal mine accident in May 2024, which caused five fatalities in northeast China's Heilongjiang Province, an ...