英语词汇“roof vent”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	roof vent
释义	roof vent roof vent 1. A ventilation device for an attic or roof cavity. 2. Above a legitimate theater, one of two or more vents above the stagehouse, constructed to open automatically in case of fire, with an aggregate clear opening area of not less than 5 percent of the area of the stage.
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