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Two robot waiters are at work in a restaurant, Dec 27, 2010. A restaurant using robots to serve and entertain customers recently opened in Jinan, capital city of East 皇冠体育app's Shandong province. The restaurant has 11 robot waiters and waitresses and mainly engages in self-service hot pot. It can cater to about 100 customers. [Photo/Xinhua]
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