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protector : 519 phrases in 51 subjects |
| Accumulators | 2 |
| Agriculture | 45 |
| Antennas and waveguides | 5 |
| Biotechnology | 1 |
| Chemistry | 17 |
| Coal | 2 |
| Communications | 4 |
| Construction | 14 |
| Earth sciences | 10 |
| Economics | 1 |
| Electric motors | 1 |
| Electric traction | 2 |
| Electronics | 24 |
| Energy industry | 1 |
| Environment | 17 |
| Finances | 5 |
| Food industry | 1 |
| Forestry | 14 |
| General | 19 |
| Geology | 2 |
| Health care | 17 |
| Hobbies and pastimes | 2 |
| Industry | 35 |
| Information technology | 4 |
| Insurance | 2 |
| International Monetary Fund | 2 |
| Labor law | 41 |
| Law | 8 |
| Lighting other than cinema | 2 |
| Materials science | 25 |
| Mechanic engineering | 51 |
| Medical | 20 |
| Metallurgy | 20 |
| Microsoft | 2 |
| Municipal planning | 3 |
| Natural sciences | 3 |
| Nuclear physics | 1 |
| Packaging | 42 |
| Patents | 2 |
| Pest control | 7 |
| Pharmacy and pharmacology | 2 |
| Politics | 1 |
| Radiology | 3 |
| Remote sensing | 1 |
| Risk Management | 1 |
| Social science | 1 |
| Technology | 6 |
| Textile industry | 2 |
| Trade unions | 1 |
| Transport | 24 |
| United Nations | 1 |