名词
中文翻译：防火阀
同义词：
['fire damper', 'fire damper valve', 'fire damper device']
例句：
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1.The fire damper is designed to prevent smoke from spreading through the building.
防火阀的设计目的是防止烟雾通过建筑物传播。
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2.During a fire, the fire damper will automatically open to allow fresh air to enter the room.
火灾时，防火阀会自动打开，以便让新鲜空气进入房间。
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3.The engineers carefully inspected the fire damper and found no signs of damage.
工程师们仔细检查了防火阀，没有发现任何损坏的迹象。