不燃气体 meaning in English
non-flammable gas
Examples
- An airship is a lighter than air aircraft . it has twin engines and uses " helium " , a non - flammable gas , as a lifting gas which is contained in a large envelope
飞船是较空气为轻的飞行器，置有两个发动机，并依靠注入于大型气囊的不燃气体氦推动其上升。