pulni gismu

x1 is a pulley [tool] for performing action/function x2 rotating on axle x3.

See also tutci, xislu, vraga.


In notes:

tutci
x1 is a tool/utensil/resource/instrument/implement used for doing x2; [form determines function].
vraga
x1 is a lever [tool] [of apparatus] for doing x2 [function/action], with fulcrum x3 and arm x4.
xislu
x1 is a wheel [tool] of device/vehicle x2, made of materials/having properties x3.
cpumi'i
l1=m1 is a tractor pulling l2.
cpumuvgau
g1=l1 pulls m1=l2 to destination m2 from origin m3 over path/route m4 at handle/locus l3.
engranaje
x1 is a gear, gear wheel (toothed)