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          防火늼为具有防火性能늺늼的ȝQ通常分ؓȝ는~和耐火늺늼两类。从防火安全和消防救生出发,防火늼性能的要求越来越?ȝ,耐火
        我国ȝ和耐防火电~的研究开发始?982q。经q?q时_?987q_许多늼厂家已投入生产ƈ为用h认同。针对当时对燃烧Ҏ的命名和型h较؜q情况Q笔者提Z燃烧试验Ҏ相对应的늺늼燃烧Ҏ,寚w火电U电~进行分c,用汉语拼音的首位字母定型作ؓ相应普通电U电~型L前缀。其中阻燃电U电~类的型号ZR和耐火늺늼cȝ型号NH已沿用至?br />   
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