 |
| |||
| faísca eléctrica | |||
| étincelle: 23 phrases in 9 subjects |
| Coal | 1 |
| Electronics | 4 |
| Energy industry | 2 |
| Industry | 2 |
| Mechanic engineering | 8 |
| Metallurgy | 3 |
| Natural sciences | 1 |
| Thermal Energy | 1 |
| Transport | 1 |
|
| |||
| faísca eléctrica | |||
| étincelle: 23 phrases in 9 subjects |
| Coal | 1 |
| Electronics | 4 |
| Energy industry | 2 |
| Industry | 2 |
| Mechanic engineering | 8 |
| Metallurgy | 3 |
| Natural sciences | 1 |
| Thermal Energy | 1 |
| Transport | 1 |