purga : 70 phrases in 13 subjects |
Agriculture | 1 |
Chemistry | 8 |
Earth sciences | 7 |
Energy industry | 2 |
Environment | 2 |
General | 2 |
Materials science | 2 |
Mechanic engineering | 27 |
Metallurgy | 5 |
Natural sciences | 1 |
Nuclear physics | 2 |
Technology | 1 |
Transport | 10 |