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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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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It is like an advanced form of loudhailer which specifically directs the sound rather than bathing everyone "says Neil davison of the non-lethal weapons project at the university of Bradford."

“这就像进化的扬声器，扬声器引导声音的方向而非泛传给所有对象。”莱佛德非致命武器计划的尼尔·大卫森说。

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Francis is UNESCO Chair of African Peace and Conflict Studies in the Department of Peace Studies at the University of Bradford.

UNESCO: Professor David J. Francis

But Professor Paul Rogers, of the University of Bradford's department of peace studies, said white phosphorus could be considered a chemical weapon if deliberately aimed at people.

BBC: NEWS | Middle East | Iraq probes US phosphorus weapons

Dr Shaun Gregory is reader in international security at the University of Bradford and has been researching the risks of nuclear war between India and Pakistan in Islamabad and Delhi for the last three years.

BBC: Analysis: South Asia's nuclear brinksmanship