 |
| collection of samples: 8 phrases in 7 subjects |
| Agriculture | 1 |
| Construction | 1 |
| Ecology | 2 |
| Gas processing plants | 1 |
| Geology | 1 |
| Makarov | 1 |
| Nuclear and fusion power | 1 |
|
| collection of samples: 8 phrases in 7 subjects |
| Agriculture | 1 |
| Construction | 1 |
| Ecology | 2 |
| Gas processing plants | 1 |
| Geology | 1 |
| Makarov | 1 |
| Nuclear and fusion power | 1 |