A man shows medical goggles made with 3D printing technology in Changsha, Central China’s Hunan province on February 10，2020. The first batch of 3D printed goggles that weigh only three-quarters as much as standard ones are put into use in hospitals in battle against novel coronavirus. （Photo: China News Service/ Yang Huafeng）
Workers check medical goggles made with 3D printing technology in Changsha, Central China’s Hunan province on February 10，2020. The first batch of 3D printed goggles that weigh only three-quarters as much as standard ones are put into use in hospitals in battle against novel coronavirus. （Photo: China News Service/ Yang Huafeng）
Workers check medical goggles made with 3D printing technology in Changsha, Central China’s Hunan province on February 10，2020. The first batch of 3D printed goggles that weigh only three-quarters as much as standard ones are put into use in hospitals in battle against novel coronavirus. （Photo: China News Service/ Yang Huafeng）
Workers check medical goggles made with 3D printing technology in Changsha, Central China’s Hunan province on February 10，2020. The first batch of 3D printed goggles that weigh only three-quarters as much as standard ones are put into use in hospitals in battle against novel coronavirus. （Photo: China News Service/ Yang Huafeng）
Workers check medical goggles made with 3D printing technology in Changsha, Central China’s Hunan province on February 10，2020. The first batch of 3D printed goggles that weigh only three-quarters as much as standard ones are put into use in hospitals in battle against novel coronavirus. （Photo: China News Service/ Yang Huafeng）
Workers check medical goggles made with 3D printing technology in Changsha, Central China’s Hunan province on February 10，2020. The first batch of 3D printed goggles that weigh only three-quarters as much as standard ones are put into use in hospitals in battle against novel coronavirus. （Photo: China News Service/ Yang Huafeng）
Workers check medical goggles made with 3D printing technology in Changsha, Central China’s Hunan province on February 10，2020. The first batch of 3D printed goggles that weigh only three-quarters as much as standard ones are put into use in hospitals in battle against novel coronavirus. （Photo: China News Service/ Yang Huafeng）
