 |
| 吸收层: 47 phrases in 16 subjects |
| Agriculture | 1 |
| Air defense | 5 |
| Aviation | 2 |
| Biotechnology | 1 |
| Chemistry | 3 |
| Electronics | 2 |
| Environment | 1 |
| General | 3 |
| Geology | 1 |
| Information technology | 1 |
| Metallurgy | 5 |
| Oil / petroleum | 1 |
| Space | 11 |
| Technology | 8 |
| Telecommunications | 1 |
| Water resources | 1 |