liquid-air breathing apparatus

例句：

1. 1. The astronaut's liquid-air breathing apparatus was designed to provide oxygen during long space missions.
   宇航员的液体-空气呼吸装置设计用于在长时间的太空任务中提供氧气。
2. 2. During the emergency, the firefighters used their liquid-air breathing apparatus to breathe through a small hole in the ceiling.
   在紧急情况下，消防员使用他们的液体-空气呼吸装置通过天花板上的一个小洞呼吸。
3. 3. The scientist carefully tested the liquid-air breathing apparatus before conducting experiments on thenew technology.
   科学家在对这项新技术进行实验之前，仔细测试了液体-空气呼吸装置。