The fire zones are generally divided into five zones: flame zone, high temperature thermalplumes zone, fresh air supplement zone, transitional zone and "inert zone".
一般可分为燃烧区、新鲜空气补充区、烟气流区、过渡区和火焰后面的“惰化区”五区。
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In thermal natural ventilation, buoyancy plumes derived from heating source make the thermal stratification indoors.