n. 气体, 汽油, 瓦斯

[化] 气体; 煤气; 瓦斯; 毒气

n. the state of matter distinguished from the solid and liquid states by: relatively low density and viscosity; relatively great expansion and contraction with changes in pressure and temperature; the ability to diffuse readily; and the spontaneous tendency to become distributed uniformly throughout any container

n. a fluid in the gaseous state having neither independent shape nor volume and being able to expand indefinitely

v. attack with gas; subject to gas fumes