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随着科学技术的发展和进步,机器人不仅在机械制造业等工业部门被广泛使用,而且进入了商业、服务行业。前不久,美国多伦多市
With the development and progress of science and technology, robots are not only widely used in industrial sectors such as machinery manufacturing, but also enter the commercial and service industries. Not long ago, the United States in Toronto