12月3日，观众在2012中国国际社会公共安全产品博览会上了解超窄边液晶拼接系统。当日，为期4天的2012中国国际社会公共安全产品博览会在北京中国国际展览中心新馆开幕。本届安博会吸引了30多个国家和地区的900多家企业参展，展品涵盖20多类公共安全相关产品。新华社发（王京生 摄） December 3,,The audience in the 2012 China international public safety products expo know super narrow edge LCD splicing system.On that day,Four days of 2012 China international public safety products fair in Beijing, China international exhibition center new opening.The ember will attract more than 30 countries and regions more than 900 enterprises, etc,The exhibits covers more than twenty kind of public safety related products.The xinhua news agency hair(WangJingSheng perturbation)

    12月3日，观众在2012中国国际社会公共安全产品博览会上体验电子沙盘触摸一体机。新华社发（王京生 摄） December 3,,The audience in the 2012 China international public safety products expo experience electronic sand table touch multifunction.The xinhua news agency hair(WangJingSheng perturbation)