BEIJING, June 26 (Xinhua) -- As the COVID-19 epidemic wanes in Beijing, some high-tech companies based in Zhongguancun Science Park, a national demonstration area for independent innovation, have sped up efforts in product design and development.

Staff members learn about the properties of an electric kart at Ninebot (Beijing) Tech Co., Ltd. in Zhongguancun of Haidian District, Beijing, capital of China, June 22, 2022. (Xinhua/Ren Chao)

Staff members test an intelligent food delivery robot at Ninebot (Beijing) Tech Co., Ltd. in Zhongguancun of Haidian District, Beijing, capital of China, June 22, 2022. (Xinhua/Ren Chao)

Staff members test an intelligent robot mower at Ninebot (Beijing) Tech Co., Ltd. in Zhongguancun of Haidian District, Beijing, capital of China, June 22, 2022. (Xinhua/Ren Chao)

Staff members conduct product testing at an acoustical laboratory of Unisound AI Technology Co., Ltd. in Zhongguancun of Haidian District, Beijing, capital of China, June 22, 2022. (Xinhua/Jin Haoyuan)■












