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H-2: 56 phrases in 16 subjects |
Agriculture | 3 |
Automobiles | 4 |
Chemistry | 4 |
Drilling | 5 |
Earth sciences | 2 |
Ecology | 1 |
Electronics | 2 |
General | 3 |
Genetics | 3 |
Metallurgy | 4 |
Oil / petroleum | 2 |
Perfume | 2 |
Space | 3 |
Surgery | 4 |
Technology | 11 |
Water resources | 3 |