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Three robot firefighters produced by HIT Robot Group are inspected by staff members at the fire brigade department of Beijing Economic-Technological Development Area (BDA) on Nov 15. The fire-fighting robots can spray water columns up to 100 meters, climb slopes, and avoid obstacles, as well as carry out complex fire-fighting and rescue operations. The robot firefighters have successfully passed technical assessments and are ready for fire-fighting operations. [Photo/kfqgw.beijing.gov.cn]