-
889.
Robot programming
Subjects
Computer programming
-
890.
Robotics
Subjects
Cybernetics
-
891.
Robust control
Subjects
Automatic control
-
892.
Rocket engines
Subjects
Jet propulsion
-
893.
Rockets (Aeronautics
Subjects
Projectiles
-
894.
Rolling (Metallurgy)
Subjects
Metal-work
-
895.
Rolls-Royce automobile
Subjects
Automobiles
-
896.
Rope
Subjects
Textile fibers
-
897.
Rotameters
Subjects
Measuring instruments
-
898.
Routers (Computer networks)
Subjects
Internetworking (Telecommunication)Computer networks
-
899.
Safety appliances
Subjects
Industrial safety
-
900.
Sailboats
Subjects
Ships
-
901.
Sails
Subjects
Shipbuilding
-
902.
Saline water conversion
Subjects
Fresh waterSaline watersWater purification
-
903.
Salt
Subjects
Marine resources
-
904.
Sandwich construction
Subjects
Laminated materials
-
905.
Sanitary engineering
Subjects
BiotechnologyCivil engineeringPublic health
-
906.
Sanitary landfills
Subjects
Waste disposal sites
-
907.
Sanitation
Subjects
Environmental health
-
908.
Scalextric toys
Subjects
Automobiles
-
909.
School furniture
Subjects
School facilitiesFurniture
-
910.
Scientific satellites
Subjects
Artificial satellites
-
911.
Sculpture materials
Subjects
Artists' materials
-
912.
Sea-power
Subjects
Naval art and science
Last updated dated: 07/02/2026