 |
| differential equation: 257 phrases in 25 subjects |
| Aerohydrodynamics | 3 |
| Astronomy | 1 |
| Automated equipment | 4 |
| Automatic control | 1 |
| Chemistry | 1 |
| Construction | 1 |
| Electrical engineering | 2 |
| Electronics | 5 |
| Hydrology | 1 |
| Immunology | 2 |
| Information technology | 6 |
| Insurance | 1 |
| Makarov | 18 |
| Mass media | 4 |
| Mathematics | 126 |
| Mechanics | 5 |
| Military | 2 |
| Nanotechnology | 5 |
| Nautical | 2 |
| Oceanography & oceanology | 1 |
| Physics | 28 |
| Programming | 16 |
| Technology | 20 |
| Telecommunications | 1 |
| Transport | 1 |