 |
| true surface: 15 phrases in 8 subjects |
| Automated equipment | 1 |
| Construction | 3 |
| Makarov | 3 |
| Mechanic engineering | 1 |
| Military | 2 |
| Oilfields | 1 |
| Physics | 1 |
| Technology | 3 |
|
| true surface: 15 phrases in 8 subjects |
| Automated equipment | 1 |
| Construction | 3 |
| Makarov | 3 |
| Mechanic engineering | 1 |
| Military | 2 |
| Oilfields | 1 |
| Physics | 1 |
| Technology | 3 |