 |
| |||
| 石油沥青 | |||
| битум нефтяной: 21 phrases in 6 subjects |
| Drilling | 1 |
| General | 5 |
| Geology | 3 |
| Nautical | 1 |
| Oil processing plants | 3 |
| Technology | 8 |
|
| |||
| 石油沥青 | |||
| битум нефтяной: 21 phrases in 6 subjects |
| Drilling | 1 |
| General | 5 |
| Geology | 3 |
| Nautical | 1 |
| Oil processing plants | 3 |
| Technology | 8 |