|
off and on : 25 phrases in 13 subjects |
| Automated equipment | 3 |
| Coal | 2 |
| Communications | 1 |
| Earth sciences | 1 |
| Finances | 1 |
| Fish farming pisciculture | 1 |
| General | 2 |
| Gymnastics | 2 |
| Metallurgy | 4 |
| Microelectronics | 3 |
| Optics branch of physics | 1 |
| Technology | 1 |
| Transport | 3 |