为了预防火灾，企业单位通常都在容易着火的部位，如仓库、原料车间、生产场地及存放有易燃易爆物品的地方，贴着“严禁烟火”、“严禁吸烟”、“严禁动用明火”、“严禁带火种进入”等禁语，这是消防安全管理的需要，稍有消防常识的人都懂得这个道理。然而，在日常生活中也不难发现，? In order to prevent the fire, the enterprise units are usually in the parts that are easy to catch fire, such as warehouses, raw material workshops, production sites and places where inflammable and explosive materials are stored, sticking to “no smoking”, “no smoking” “It is forbidden to use open flame”, “Prohibit entry with fire” and other banned languages. This is the need of fire safety management. Those who have a little common sense of fire know this truth. However, in everyday life is not difficult to find ,?