China's Operating High-speed Railway to hit 60,000 km by 2030

Editor:SONG Ziyan
Chinese President Xi Jinping has sent a congratulatory letter to the Science and Technology Daily on the occasion of the 40th anniversary of its founding.
Chinese researchers, led by Soochow University in east China, have resolved key challenges in maintaining efficiency and stability in flexible tandem solar cells. This is a milestone breakthrough in silicon-based flexible photovoltaics. The study was published in Nature.