matra gismu

x1 is a motor/engine, driving/propelling/providing power to x2.

See also marce, minji, carce.

In notes:

carce
x1 is a cart/carriage/wagon [wheeled vehicle] for carrying x2, propelled by x3.
marce
x1 is a vehicle/mode of transport carrying x2 in/on surface/medium x3, propelled by x4.
minji
x1 is a machine for use/function x2; [automated apparatus, without direct function control].
blomatryga'a
g1=b3 is the shaft made of g2 of engine m1 in boat m2=b1.
ca'erslanu
s1 is a valve/piston of material s2, shoving/pushing c2 at locus c3.
ctilyvau
v1 is a fuel tank.
jacfebmatra
m1 is a steam engine driving m2.
jaurgacmatra
m1 is a steam engine driving m2.