英语词汇“smoke door”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	smoke door
释义	smoke door smoke door In the roof of a theater, above the gridiron, a door which opens automatically in case of fire or when a release line is cut; confines the smoke to the backstage area.
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