 |
| gravedad: 267 phrases in 21 subjects |
| Aviation | 123 |
| Chemistry | 1 |
| Commerce | 1 |
| Drilling | 4 |
| Economy | 1 |
| Electronics | 1 |
| Environment | 1 |
| Fish farming pisciculture | 1 |
| General | 12 |
| Geology | 35 |
| Geophysics | 5 |
| Law | 9 |
| Mathematics | 1 |
| Mechanics | 1 |
| Medical | 1 |
| Metallurgy | 1 |
| Microsoft | 3 |
| Oil / petroleum | 22 |
| Packaging | 4 |
| Physics | 2 |
| Technology | 38 |