CHANGCHUN, Nov. 23 (Xinhua) -- At the ski resort of Lianhuashan in northeast China's Jilin Province, several silver robotic dogs conduct patrols, transport first-aid supplies and pose for photos with the skiers, who now enjoy not only winter sports, but also new services brought by high-tech products.
Winter sports have gained popularity in China in recent years, and people expect the ninth Asian Winter Games, s
