 |
| perturbation: 273 phrases in 47 subjects |
| Agriculture | 1 |
| Astronautics | 1 |
| Astronomy | 12 |
| Automatic control | 3 |
| Banking | 1 |
| Climatology | 3 |
| Coal | 1 |
| Commerce | 5 |
| Communications | 17 |
| Computer numerical control | 5 |
| Computers | 11 |
| Construction | 2 |
| Earth sciences | 13 |
| Economy | 10 |
| Electricity generation | 1 |
| Electronics | 21 |
| Energy industry | 1 |
| Environment | 13 |
| Finances | 14 |
| Fishery fishing industry | 2 |
| Forestry | 4 |
| General | 20 |
| Health care | 8 |
| High energy physics | 1 |
| Information technology | 1 |
| International Monetary Fund | 2 |
| International trade | 1 |
| Labor law | 1 |
| Law | 4 |
| Life sciences | 16 |
| Magnetics | 10 |
| Mathematics | 5 |
| Measuring instruments | 2 |
| Mechanic engineering | 1 |
| Medical | 8 |
| Medical appliances | 1 |
| Metallurgy | 3 |
| Natural sciences | 5 |
| Physical sciences | 1 |
| Scientific | 1 |
| Security systems | 1 |
| Soil science | 1 |
| Statistics | 9 |
| Technology | 13 |
| Telecommunications | 7 |
| Transport | 9 |
| United Nations | 1 |