人类的日常生活和生产活动与周围气氛环境紧密相关.气氛的变化对人类有极大的影响.例如,气氛中缺氧,会使人感到窒息甚至昏迷致死.气氛中含有毒气体,则会给人带来更大危害.特别是近年来使用可燃 For example, the lack of oxygen in the atmosphere can make people feel suffocated and even comatose, and the atmosphere contains poisonous gas, which will give the human beings’ daily life and production activities closely related to the surrounding atmosphere and environment. People bring greater harm, especially in recent years, the use of flammable