As the core of emergency plan, emergency response comprises eleven secondary elements, such as on-site command and control.
应急响应是应急预案中核心的内容，它包括现场指挥与控制等十一个二级要素。
As the core of emergency plan, emergency response comprises eleven secondary elements, such as on-site command and control.
应急响应是应急预案中核心的内容，它包括现场指挥与控制等十一个二级要素。
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