In this research works, the authors, using the optical welding robot, have controlled arc for improving the welding quality. The control system consists of TV-camera, micro-computer and image memory.

研究中使用了由个人微计算机、图象处理装置及焊接机器人构成的正规视觉机器人，对弧长进行计测控制，以提高焊接质量。

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Peddlers who had these big, big leather bags that would go around Europe and sell things like pins and miraculous images of the Virgin Mary and the stories of saints and all this kind of stuff and Joan of Arc or Robin Hood, in the case of England, become part of the collective memory.

拿着大皮袋的小贩们走遍欧洲,到处贩卖例如胸针,圣母画像,圣徒故事,圣女贞德和罗宾汉之类的小册子,这成了英国大众记忆的一部分

耶鲁公开课 - 欧洲文明课程节选