|
operating hours : 15 phrases in 10 subjects |
| Astronautics | 1 |
| Computers | 1 |
| Construction | 1 |
| Economics | 1 |
| Electronics | 1 |
| Energy industry | 2 |
| General | 1 |
| Measuring instruments | 1 |
| Military | 3 |
| Technology | 3 |
|
operating hours : 15 phrases in 10 subjects |
| Astronautics | 1 |
| Computers | 1 |
| Construction | 1 |
| Economics | 1 |
| Electronics | 1 |
| Energy industry | 2 |
| General | 1 |
| Measuring instruments | 1 |
| Military | 3 |
| Technology | 3 |