 |
| aquecedor: 187 phrases in 19 subjects |
| Agriculture | 6 |
| Chemistry | 23 |
| Commerce | 1 |
| Earth sciences | 4 |
| Electronics | 56 |
| Energy industry | 1 |
| Environment | 2 |
| General | 13 |
| Industry | 8 |
| Information technology | 1 |
| Mechanic engineering | 17 |
| Metallurgy | 1 |
| Municipal planning | 8 |
| Natural sciences | 3 |
| Patents | 1 |
| Technology | 3 |
| Thermal Energy | 32 |
| Transport | 4 |
| Vacuum tubes | 3 |