Brakes 2 Clutches (Machinery) 2 Gearing 2 Hydraulic machinery Materials handling 2 Mechanical engineering 2 Pneumatic machinery 2 Mais ... Springs (Mechanism) 2 Actuators 1 Air conditioning 1 Air-compressors 1 Automatic control 1 Bearings (Machinery) 1 Belts and belting 1 Cams 1 Chains 1 Clamps (Engineering) 1 Combined cycle power plants 1 Combustion 1 Computer-aided design 1 Condensers (Steam) 1 Conveying machinery 1 Couplings 1 Design and construction 1 Drainage 1 Electric controllers 1 Electronic controllers 1 Energy conservation 1 Environmental engineering 1 Equipment and supplies 1 menos ...