When transforming thermal energy into mechanical energy, the thermal efficiency of a heat engine is the percentage of energy that is transformed into work.
(the thermal efficiency of a heat engine; is; the percentage of energy that is transformed into work; T:When transforming thermal energy into mechanical energy) (the percentage of energy; is transformed; into work)
the thermal efficiency of a heat engine the percentage of energy
is is transformed
the percentage of energy that is transformed into work T:When transforming thermal energy into mechanical energy
into work