on August 12th, the 25th China Youth Science and Technology Invention Contest closed in Guangzhou. The final winners were determined after expert review, quality assessment, skills testing and other aspects of investigation. During this contest, the Guangdong Science Center selected a green home pavilion; traffic world exhibition, the main building and outdoor items such as 17 low-carbon exhibits for the players to sense the development experience. Through competition, experience exchange and joy & friendship sharing, the theme of this contest "Innovation ? Experience ? Growth - Approaching a low-carbon life" is fully reflected.