备用气瓶的英文

bailout bottle

• 备用:    reserve; spare; al ...
• 气瓶:    air bottle; gas cy ...
• 船用气瓶:    marine air bottle

例句与用法

1. 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。