ৌ ઁ2ߨҗ ߊࢿ ୋب(بੑ : ৌӝҙ(Cyclic Heat Engines))
surroundings surroundings
ৌӝҙ
(cyclic heat
ৌ(heat) ੌ(work)
energy energy energy energy engine) energy energy energy energy
System System
ৌ(heat) : ޖࢲೠ ࠙ز ੌ(work) : ࢲח ࠙ز
ഋక۽ ׳غח ীց ഋక۽ ׳غח ীց