-
9913.
Hydroelectric power plants
Subjects
Electric power-plantsWater resources development
-
9914.
Hydroformylation
Subjects
Chemical reactions
-
9915.
Hydrogen
Subjects
Nonmetals
-
9916.
Hydrogen as fuel
Subjects
Fuel
-
9917.
Hydrogen bomb
Subjects
Nuclear weaponsBombs
-
9918.
Hydrogen bonding
Subjects
Molecular association
-
9919.
Hydrogen peroxide
Subjects
DisinfectantsPeroxides
-
9920.
Hydrogen-ion concentration
Subjects
-
9921.
Hydrogenation
Subjects
Chemical reactions
-
9922.
Hydrogeology
Subjects
Geology
-
9923.
Hydrographic surveying
Subjects
Surveying
-
9924.
Hydrography
Subjects
-
9925.
Hydrolases
Subjects
Enzymes
-
9926.
Hydrologic cycle
Subjects
Hydrology
-
9927.
Hydrology
Subjects
Earth sciences
-
9928.
Hydrolysis
Subjects
-
9929.
Hydrometallurgy
Subjects
Metallurgy
-
9930.
Hydrometeorology
Subjects
HydrologyMeteorology
-
9931.
Hydrophilidae
Subjects
Beetles
-
9932.
Hydrophobic surfaces
Subjects
Surface chemistry
-
9933.
Hydroponics
Subjects
HorticulturePlant nutrition
-
9934.
Hydrostatics
Subjects
CapillarityHydraulic engineeringMechanicsAnalytical mechanics
-
9935.
Hydrotherapy
Subjects
Physical therapy
-
9936.
Hydrothermal alteration
Subjects
Metasomatism (Mineralogy)
Last updated dated: 13/12/2025