 |
| |||
| слой D; область D; нижняя мантия | |||
| слой D ионосферы | |||
| strato D: 26 phrases in 11 subjects |
| Astronomy | 2 |
| Chemistry | 3 |
| Construction | 6 |
| Electronics | 1 |
| Environment | 3 |
| General | 2 |
| Geology | 1 |
| Mathematics | 1 |
| Metallurgy | 4 |
| Road works | 1 |
| Technology | 2 |
|
| |||
| слой D; область D; нижняя мантия | |||
| слой D ионосферы | |||
| strato D: 26 phrases in 11 subjects |
| Astronomy | 2 |
| Chemistry | 3 |
| Construction | 6 |
| Electronics | 1 |
| Environment | 3 |
| General | 2 |
| Geology | 1 |
| Mathematics | 1 |
| Metallurgy | 4 |
| Road works | 1 |
| Technology | 2 |