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备用气瓶
meaning in English
bailout bottle
Examples
If there ' s more oxygen in each breath , presumably you don ' t have to take another one so soon and your gas consumption rate is lower
如果有更多氧气供呼吸,再加上气体消耗率低,想必就不用再带
备用气瓶
了。
Related Words
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应急备用
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