gapci -gac- gismu

x1 is gaseous/fumes/a gas/vapor of material/composition including x2, under conditions x3.

x3 includes temperature and pressure. See also pambe, vacri, litki, sligu, danmo, bumru, cidro, flecu.

In notes:

bumru
x1 is foggy/misty/covered by a fog/mist/vapor of liquid x2.
cidro
x1 is a quantity of/contains/is made of hydrogen (H); [metaphor: light, flammable].
danmo
x1 is made of/contains/is a quantity of smoke/smog/air pollution from source x2.
flecu
x1 is a current/flow/river of/in x2 flowing in direction to/towards x3 from direction/source x4.
litki
x1 is liquid/fluid, of composition/material including x2, under conditions x3.
navni
x1 is a quantity of/contains/is made of inert gas of type x2 [neon/argon/radon/xenon/krypton].
pambe
x1 is a pump/injector [tool/apparatus] pumping/inserting fluid x2 to x3 from x4 by means x5.
sligu
x1 is solid, of composition/material including x2, under conditions x3.
vacri
x1 is a quantity of air/normally-gaseous atmosphere of planet x2, of composition including x3.
bumgapci
x1 is fog/mist of liquid/composition x2 covering x3.
jaurgacmatra
m1 is a steam engine driving m2.
maisru
x1=s1=m1 is the material environment/surrounding material (i.e. gaseous/liquid atmosphere, vacuum, etc.) enclosing x2=s2 in direction(s)/dimensions(s)/plane x3=s3=m3, of type/composition including x4=m2.