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عمومی::
تفکیک
nrodured h y eXP0SUre/° heat Demarcation lines can be produced between the melted and unmelted portions of the
The level of descent of the hot gas layer can be determined by examining the line of demarcation present on the walls and verti- cal surfaces of objects within the room.
Lines of Demarcation
When flame, heat, and smoke impinge on an object or surface, lines or areas of demarcation can be created, producing a border between affected and less affected areas of the object or surface.
Numerous factors, including the heat release rate of the fire, نre- suppression activities, Ventilation, exposure time, proximity to the fire or heat source, and the material itself, dictate the production of these lines and areas of .demarcation.
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