This topic examines current affairs and politics. 202110/On October 4th, the reconstruction project of Dafutuo solar absorber tower, the landmark landscape project of the Winter Olympics in Yanqing District, started recently, and it is expected to be completed by the end of 202210. It is understood that the Dafutuo solar absorber tower is a key project of the "Eleventh Five-Year" national high-tech research and development plan, and it is the largest and tallest building in Yanqing area at present.