 |
| |||
| flèche de rotation (I. Havkin) | |||
| стрелка вращения: 32 phrases in 12 subjects |
| Automated equipment | 2 |
| Aviation | 1 |
| Electrical engineering | 2 |
| Gear train | 2 |
| General | 2 |
| Hydraulic engineering | 3 |
| Mathematics | 2 |
| Mechanic engineering | 5 |
| Meteorology | 4 |
| Physics | 1 |
| Surveying | 1 |
| Technology | 7 |