Emission : 177 phrases in 25 subjects |
Banking | 1 |
Chemistry | 1 |
Coal | 1 |
Communications | 1 |
Earth sciences | 6 |
Ecology | 2 |
Economy | 4 |
Electronics | 22 |
Environment | 49 |
Finances | 55 |
General | 5 |
Health care | 1 |
Industry | 1 |
International Monetary Fund | 1 |
Law | 3 |
Magnetics | 3 |
Mechanic engineering | 1 |
Medical | 4 |
Metallurgy | 2 |
Natural sciences | 1 |
Physics | 1 |
Statistics | 3 |
Technology | 1 |
Transport | 7 |
Vacuum tubes | 1 |