英语词汇firewall with 4-hour fire 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	firewall with 4-hour fire rating
释义	firewall with 4-hour fire rating 简明释义耐火 4 小时的防火墙专业释义 1 土木建筑工程耐火4小时的防火墙
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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。