He described how the system works at the British Festival of Science taking place at the University of Bradford this week.
他给我们描述了本周在布拉德福德大学举办的英国科技节上这个系统是如何工作的。
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Lying game: Professor Ugail, pictured, developed the new system with a team at the University of Bradford.
谎言游戏：优格里教授和一个小组在布拉德福德大学开发的新系统。
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The system, developed by a team from the universities of Bradford and Aberystwyth in conjunction with the UK Border Agency, was unveiled today at the British Science Festival in Bradford.