electrotechnics 30 concrete constructions 23 mechanical engineering 23 civil engineering 21 building constructions 19 construction materials 17 railway transport 14 more ... history 12 material engineering 12 foundry industry 12 bridges 11 technology 11 metallurgy 10 concretes 9 electronics 9 geodesy 9 civil engineering constructions 9 wastes 9 elasticity 9 data transmission 9 roads 9 welding 9 forming 9 production 9 cars 8 elektrická měření 8 electric machines 8 railway vehicles 8 castings (metallurgy) 8 strength 8 less ...