Last Updated：2025/11/28
Sentence
改修工事中に技術者は天井のダクトにある防火ダンパーが腐食して交換が必要であることを発見した。
Quizzes for review
During the renovation, the technician discovered that a fire damper in the ceiling duct was corroded and needed replacement.
See correct answer
During the renovation, the technician discovered that a fire damper in the ceiling duct was corroded and needed replacement.
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Related words
fire damper
Noun
archaic
historical
Japanese Meaning
暖房、換気、空調のダクト内に設置され、火災時に自動的に閉じることで火の延焼を防ぐ受動式防火保護装置
Related Words
English - English
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