put : 84 phrases in 18 subjects |
Agriculture | 2 |
Chemistry | 4 |
Coal | 6 |
Communications | 2 |
Construction | 14 |
Earth sciences | 5 |
Electronics | 2 |
Environment | 8 |
Finances | 6 |
Fish farming pisciculture | 1 |
General | 6 |
Industry | 1 |
Life sciences | 16 |
Materials science | 1 |
Mechanic engineering | 3 |
Metallurgy | 1 |
Technology | 1 |
Transport | 5 |