 |
| Eficiência: 224 phrases in 34 subjects |
| Accumulators | 1 |
| Agriculture | 3 |
| Antennas and waveguides | 5 |
| Automatic control | 1 |
| Brazil | 3 |
| Chemistry | 6 |
| Communications | 10 |
| Earth sciences | 11 |
| Economy | 5 |
| Electric motors | 4 |
| Electrochemistry | 4 |
| Electronics | 21 |
| Energy industry | 28 |
| Environment | 8 |
| Finances | 10 |
| Fish farming pisciculture | 2 |
| General | 10 |
| Health care | 6 |
| Industry | 3 |
| Information technology | 2 |
| Life sciences | 1 |
| Lighting other than cinema | 9 |
| Materials science | 1 |
| Mathematics | 10 |
| Mechanic engineering | 1 |
| Medical | 3 |
| Microsoft | 1 |
| Natural sciences | 4 |
| Nuclear physics | 11 |
| Statistics | 24 |
| Thermal Energy | 2 |
| Trade unions | 1 |
| Transport | 7 |
| Vacuum tubes | 6 |