-
889.
Rope
Subjects
Textile fibers
-
890.
Rotameters
Subjects
Measuring instruments
-
891.
Routers (Computer networks)
Subjects
Internetworking (Telecommunication)Computer networks
-
892.
Safety appliances
Subjects
Industrial safety
-
893.
Sailboats
Subjects
Ships
-
894.
Sails
Subjects
Shipbuilding
-
895.
Saline water conversion
Subjects
Fresh waterSaline watersWater purification
-
896.
Salt
Subjects
Marine resources
-
897.
Sandwich construction
Subjects
Laminated materials
-
898.
Sanitary engineering
Subjects
BiotechnologyCivil engineeringPublic health
-
899.
Sanitary landfills
Subjects
Waste disposal sites
-
900.
Sanitation
Subjects
Environmental health
-
901.
Scalextric toys
Subjects
Automobiles
-
902.
School furniture
Subjects
School facilitiesFurniture
-
903.
Scientific satellites
Subjects
Artificial satellites
-
904.
Sculpture materials
Subjects
Artists' materials
-
905.
Sea-power
Subjects
Naval art and science
-
906.
Seaplanes
Subjects
AeronauticsAirplanes
-
907.
Security systems
Subjects
-
908.
Seismic prospecting
Subjects
Geophysical explorationSeismology
-
909.
Seismic reflection method
Subjects
Seismic prospecting
-
910.
Seismometers
Subjects
Measuring instrumentsSeismology
-
911.
Semiconductor diodes
Subjects
Semiconductors
-
912.
Semiconductor lasers
Subjects
LasersSemiconductors
Last updated dated: 20/04/2025