Subject
mechanics
22
mathematics
21
biography
20
physics
18
library science
13
Artificial intelligence
10
Computer science
10
chemistry
10
infinitesimal calculus
10
magnetism
10
scientist
10
crystal structure
9
meteorology
9
radiochemistry
8
trace analysis
8
Computer vision
7
Information storage and retrieval systems
7
Information systems
7
Physics.
7
crystallography
7
isotope application
7
optics
7
partial differential equation
7
Optical pattern recognition
6
astronomy
6
electrodynamics
6
geophysics
6
radiation chemistry
6
thermodynamics
6
Database management
5
abbreviation
5
atmospheric model
5
chemical analysis
5
differential equation
5
electrical engineering
5
electricity
5
electromagnetism
5
history
5
metallography
5
quantum theory
5
trace amount
5
trace element
5
trace metal
5
acoustics
4
arithmetics
4
astrophysics
4
atmosphere
4
climatology
4
cosmology
4
dynamics
4
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