หุ่นยนต์ทำงานเเทนคนในซุปเปอร์มาเก็ตที่สหรัฐฯ

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Robots, artificial intelligence and machine learning technologies were all on display at the National Retail Federation (NRF) 2018 trade show. The event showcased the ways retailers are keeping pace with shoppers' round-the-clock spending. Tina Trinh reports.