-
9505.
High power lasers
Subjects
Lasers
-
9506.
High pressure (Science)
Subjects
Pressure
-
9507.
High pressure (Technology)
Subjects
High pressure (Science)Industrial chemistry
-
9508.
High resolution spectroscopy
Subjects
Spectrum analysis
-
9509.
High school dropouts
Subjects
Secondary education
-
9510.
High school teachers
Subjects
Teachers
-
9511.
High schools
Subjects
Schools
-
9512.
High schools
Subjects
High schools
-
9513.
High speed trains
Subjects
Railroad trains
-
9514.
High technology
Subjects
Technology
-
9515.
High technology industries
Subjects
Industry
-
9516.
High temperature superconductivity
Subjects
Superconductivity
-
9517.
High temperatures
Subjects
Heat
-
9518.
High temperatures on metals
Subjects
High temperatures
-
9519.
High voice
Subjects
-
9520.
High-fidelity
Subjects
ElectronicsDigital sound recording and reproducing
-
9521.
Higher education
Subjects
Education stages
-
9522.
Highway engineers
Subjects
Civil engineers
-
9523.
Hijab (Islamic clothing)
Subjects
Costume
-
9524.
Hijacking of ships
Subjects
-
9525.
Hiking
Subjects
Hiking
-
9526.
Hiking
Subjects
Outdoor life
-
9527.
Hilbert algebras
Subjects
Von Neumann algebrasFunctional analysis
-
9528.
Hilbert schemes
Subjects
Schemes (Algebraic geometry)
Last updated dated: 21/02/2026