 |
|
absorption unit : 34 phrases in 13 subjects |
| Acoustics | 1 |
| Astronomy | 3 |
| Bridge construction | 1 |
| Drilling | 1 |
| Electronics | 1 |
| Makarov | 1 |
| Oil and gas | 4 |
| Oilfields | 1 |
| Public utilities | 2 |
| Refrigeration | 16 |
| Soviet | 1 |
| Space | 1 |
| Technology | 1 |
|
|
absorption unit : 34 phrases in 13 subjects |
| Acoustics | 1 |
| Astronomy | 3 |
| Bridge construction | 1 |
| Drilling | 1 |
| Electronics | 1 |
| Makarov | 1 |
| Oil and gas | 4 |
| Oilfields | 1 |
| Public utilities | 2 |
| Refrigeration | 16 |
| Soviet | 1 |
| Space | 1 |
| Technology | 1 |