 |
| |||
| migration of gas | |||
| circulation des gaz: 62 phrases in 8 subjects |
| Chemistry | 1 |
| Coal | 1 |
| Electronics | 1 |
| Information technology | 1 |
| Measuring instruments | 1 |
| Natural sciences | 1 |
| Transport | 1 |
| Радиоактивное излучение | 55 |
|
| |||
| migration of gas | |||
| circulation des gaz: 62 phrases in 8 subjects |
| Chemistry | 1 |
| Coal | 1 |
| Electronics | 1 |
| Information technology | 1 |
| Measuring instruments | 1 |
| Natural sciences | 1 |
| Transport | 1 |
| Радиоактивное излучение | 55 |