名词
中文翻译：门抽气器
同义词：
['door latch', 'door catcher']
例句：
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1.The door extractor is a device that prevents the door from closing too quickly.
门抽气器是一种防止门关闭过快的设备。
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2. The door extractor was designed to make opening and closing the door easier.
门抽气器的设计是为了使开门和关门更加方便。
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3. The door extractor has been improved significantly since its introduction.
自从门抽气器被引入以来，它的改进已经非常明显。