 |
| 起伏: 317 phrases in 25 subjects |
| Astronautics | 1 |
| Astronomy | 1 |
| Automated equipment | 6 |
| Automobiles | 2 |
| Aviation | 2 |
| Cartography | 2 |
| Chemistry | 2 |
| Electricity | 1 |
| Electronics | 10 |
| Fish farming pisciculture | 2 |
| General | 144 |
| Geology | 17 |
| Geophysics | 3 |
| Hydraulic engineering | 1 |
| Informal | 1 |
| Mathematics | 2 |
| Metallurgy | 1 |
| Military | 11 |
| Oceanography & oceanology | 1 |
| Oil processing plants | 7 |
| Physics | 1 |
| Radio | 1 |
| Radiolocation | 3 |
| Technology | 94 |
| Television | 1 |