应急系统(Emergency System, ES)主要是针对自然灾害,安全事故，危险物泄露，街头骚乱,恐怖活动等突发事件发生后所采取的一系列应急措施和行动而建立的系统，主要目的是在最短的时间内最大限度地减轻灾害所造成的损失。-Emergency Response System (Emergency System, ES) is mainly directed against natural disasters, safety incidents, hazardous materials lea