|
dumb-bell : 34 phrases in 15 subjects |
| Antennas and waveguides | 3 |
| Astronomy | 1 |
| Cement | 2 |
| Chemistry | 2 |
| Construction | 3 |
| Electronics | 1 |
| Gymnastics | 1 |
| Household appliances | 2 |
| Makarov | 5 |
| Mathematics | 1 |
| Medical | 2 |
| Oil / petroleum | 1 |
| Plastics | 1 |
| Polymers | 6 |
| Technology | 3 |