It's a source of emergency air on planes, submarines, and spacecraft that releases oxygen when heated.

这是在飞机、潜艇及宇宙飞船里，应急空气的来源，它在被加热时释放氧气。

youdao

It's a source of emergency air on planes, submarines, and spacecraft that releases oxygen when heated.

这是在飞机、潜艇及宇宙飞船里，应急空气的来源，它在被加热时释放氧气。

youdao