简单地说，一般建材(如木材、石膏板其至金属天花)当受到高温或燃烧后都会将火和热蔓延至其它位置。
Simply put, the general building materials (such as wood, gypsum board to the metal ceiling) when subjected to high temperature or combustion will spread the fire and heat to other locations.
简单地说，一般建材(如木材、石膏板其至金属天花)当受到高温或燃烧后都会将火和热蔓延至其它位置。
Simply put, the general building materials (such as wood, gypsum board to the metal ceiling) when subjected to high temperature or combustion will spread the fire and heat to other locations.
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