英语词汇“safety door”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	safety door
释义	safety door safety door [′sāf·tē ‚dȯr] (mining engineering) An extra door ready for use in the event of damage to the existing ventilation door or in any emergency, for example, explosion or fire.
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