TJ Mechanical engineering and machinery Mechanics applied to machinery. Dynamics 4 HE Transportation and Communications 2 TL Motor vehicles. Aeronautics. Astronautics 2 TS Manufactures 2 Automation 1 Finite element method 1 Machine construction (General) 1 Machine design and drawing 1 Machine shops and machine shop practice 1 Mechanical movements 1 NC Drawing Design Illustration 1 Production of electric energy or power. Powerplants. Central stations 1 Rubber industry 1 Structural engineering 1 T Technology (General) 1 TK Electrical engineering. Electronics Nuclear engineering 1 Transportation engineering 1 VM Naval architecture. Shipbuilding. Marine engineering 1