Photo taken on Nov 28, 2020 shows an antivirus machine displayed during the 17th China-ASEAN Expo at Nanning International Convention and Exhibition Center in Nanning, South China's Guangxi Zhuang autonomous region. The expo runs from Nov 27 to 30 in Nanning. [Photo/Xinhua]
A visitor tries VR (Virtual Reality) glasses during the 17th China-ASEAN Expo at Nanning International Convention and Exhibition Center in Nanning, South China's Guangxi Zhuang autonomous region, Nov 28, 2020. [Photo/Xinhua]
Photo taken on Nov 28, 2020 shows a transparent television displayed during the 17th China-ASEAN Expo at Nanning International Convention and Exhibition Center in Nanning, South China's Guangxi Zhuang autonomous region. [Photo/Xinhua]
Photo taken on Nov 28, 2020 shows a model of China's Five-hundred-meter Aperture Spherical radio Telescope (FAST) displayed during the 17th China-ASEAN Expo at Nanning International Convention and Exhibition Center in Nanning, [Photo/Xinhua]
Photo taken on Nov 28, 2020 shows a model of maglev train displayed during the 17th China-ASEAN Expo at Nanning International Convention and Exhibition Center in Nanning, South China's Guangxi Zhuang autonomous region. [Photo/Xinhua]