英语词汇“pressure demand oxygen system”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	pressure demand oxygen system
释义	pressure demand oxygen system pressure demand oxygen system A demand oxygen system that supplies diluted oxygen at lower heights and 100% oxygen under pressure at higher heights. The oxygen under pressure is forced into the lungs of the wearer. See demand oxygen system.
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