英语词汇“automatic closing device”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	automatic closing device
释义	automatic closing device closing device, automatic closing device, self-closing device 1.A mechanism designed to ensure that an open fire door will close and latch in the event of a fire. 2. A device which ensures that a door will return to its closed position after being opened.
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automatic closing device