27.010 Energy and heat transfer engineering in general
27.015 Energy efficiency. Energy conservation in general
27.020 Internal combustion engines
27.040 Gas and steam turbines. Steam engines
27.060 Burners. Boilers
27.015 Energy efficiency. Energy conservation in general
27.020 Internal combustion engines
27.040 Gas and steam turbines. Steam engines
27.060 Burners. Boilers