事故灾难，英文名称disaster，是具有灾难性后果的事故。
本文对安全生产事故灾难应急管理系统进行研究。
Emergency management system of accident disaster was studied in this paper.
突发公共事件包括自然灾害、事故灾难、突发公共卫生事件和突发社会安全事件。
Public accident is consisted of disaster, accident calamity, public hygiene event and welfare event.
近年来自然灾害、事故灾难、公共卫生和社会安全等领域的危机事件频繁发生，我国似乎正处于一个危机四伏、危机四起的时代。
In recent years, natural disasters, accidents, crises in public health, social security and other fields have occurred frequently, it seems that we are in a perilous, crisis-ridden era.
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