英语词汇fire-protection rating怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	fire-protection rating
释义	fire-protection rating 简明释义防火等级：指建筑材料、构件或设备在火灾条件下的耐火性能等级。网络释义短语 1 fire protection rating 耐火等级双语例句 1 Fire rating: H-3 Protection Grade: IP54 it has wide light distribution curve and its prism glass can reduce glace. 灯具防火等级：H - 3防护等级：IP54灯具配光曲线宽，棱晶玻璃罩减少眩光。
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英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。