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reduction/oxidation : 98 phrases in 20 subjects |
Agriculture | 5 |
Automobiles | 4 |
Chemistry | 6 |
Desert science | 4 |
Earth sciences | 3 |
Ecology | 3 |
Electronics | 4 |
Engineering geology | 1 |
Environment | 1 |
General | 4 |
Geophysics | 1 |
Life sciences | 1 |
Metallurgy | 9 |
Oil / petroleum | 5 |
Oil processing plants | 1 |
Plastics | 5 |
Polymers | 5 |
Sports | 3 |
Technology | 27 |
Water resources | 6 |