随着社会生产力的不断发展，火灾呈现出多样化、复杂化的趋势．出现了高层建筑、地下建筑、石油化工等大范围、大面积的立体火灾，燃烧机理也趋复杂，并呈现温度高、热辐射强、毒气危害严重、燃烧快、蔓延形式复杂多样等特点，严重阻碍和制约了灭火人员的战斗行动的展开，使灭 With the continuous development of social productivity, the fire presents a trend of diversification and complication. Large-scale, large-area three-dimensional fires have emerged in high-rise buildings, underground buildings, and petrochemicals, and the combustion mechanism has become more complex. It has also been characterized by high temperatures, strong heat radiation, serious harm to toxic gases, rapid combustion, and complex and diverse forms of spread. Obstructs and restricts the deployment of fighting operations by fire fighters