在公共安全领域里,一起悲剧事故在发生那一刻永远比没完没了的讨论更能让问题透明化。对餐车的安全问题来说,“那一刻”发生在美国费城2014年7月1日的清晨。某品牌快餐车的丙烷气罐发生泄漏,引起爆炸,产生的火球飞向60 m的高空,附近的楼房都摇晃起来,气罐被炸飞到29 m外一家民房的院子里。42岁的餐车经营者奥尔加以及她17岁的女儿杰琳在此次事故中受到3级烧伤并在3周后不幸死去。 In the field of public safety, the tragedy of a tragedy will always be more transparent than the endless discussion at the moment of its occurrence. For the safety of the dining car, “The moment ” occurred in the early morning of July 1, 2014 in Philadelphia, USA. A brand of fast food truck propane gas tank leak, causing an explosion, the resulting fireball to 60 m altitude, the buildings are shaking around, the gas tank was blown to 29 m outside the courtyard of a private house. Olga, the 42-year-old diner, and her 17-year-old daughter Jerlin suffered a grade 3 burn in the accident and died unhappy after three weeks.