 |
| |||
| work-rest cycle | |||
| режим труда -отдыха: 15 phrases in 6 subjects |
| Aviation medicine | 6 |
| Construction | 1 |
| Economy | 1 |
| General | 5 |
| Mineral products | 1 |
| Occupational health & safety | 1 |
|
| |||
| work-rest cycle | |||
| режим труда -отдыха: 15 phrases in 6 subjects |
| Aviation medicine | 6 |
| Construction | 1 |
| Economy | 1 |
| General | 5 |
| Mineral products | 1 |
| Occupational health & safety | 1 |