英语词汇“protected opening”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	protected opening
释义	protected opening protected opening In a wall or partition, an opening which is fitted with a door, window, or shutter having a fire-endurance rating appropriate to the use of the wall.
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英语词典包含2567994条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。