火灾环境 meaning in English

fire environment

2 ) simulation of the heat transfer across the walls : there are two methods , finite thickness solid method and semi - infinite solid method , to simulate the heat transfer across the walls when the temperature gradient along the height and the width of the wall is ignored
在火灾环境下,忽略高度和宽度方向的温度变化,采用一维热传导方程,建筑、围护结构适用两种传热模型:有限厚度模型和半无限大厚度模型。