“breathing air”可以造什么句，breathing air造句

And, perhaps as importantly, you also can never devote your undivided attention to the biped mammals who are breathing air in the room with you.

Does the employee know where the breathing air is?

Used in various forms of breathing air systems including SCUBA, Breather Boxes and in Plant connections, our quick disconnect couplings provide ease of use and the highest degree of safety.