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circular : 539 phrases in 47 subjects |
| Agriculture | 50 |
| Antennas and waveguides | 6 |
| Automated equipment | 4 |
| Cables and cable production | 2 |
| Chemistry | 4 |
| Coal | 1 |
| Communications | 18 |
| Construction | 8 |
| Earth sciences | 18 |
| Economics | 12 |
| Electronics | 35 |
| Environment | 1 |
| Finances | 4 |
| Fish farming pisciculture | 2 |
| Forestry | 3 |
| General | 21 |
| Hobbies and pastimes | 2 |
| Immigration and citizenship | 1 |
| Industry | 47 |
| Information technology | 18 |
| International Monetary Fund | 3 |
| Labor law | 2 |
| Law | 4 |
| Life sciences | 24 |
| Magnetics | 1 |
| Materials science | 4 |
| Mathematics | 19 |
| Measuring instruments | 2 |
| Mechanic engineering | 42 |
| Medical | 28 |
| Metallurgy | 19 |
| Microsoft | 10 |
| Municipal planning | 2 |
| Natural resourses and wildlife conservation | 2 |
| Natural sciences | 4 |
| Nuclear and fusion power | 1 |
| Nuclear physics | 2 |
| Packaging | 1 |
| Patents | 2 |
| Satellite communications | 1 |
| Scientific | 7 |
| Statistics | 17 |
| Technology | 10 |
| Textile industry | 31 |
| Thermal Energy | 1 |
| Transport | 41 |
| Wood processing | 2 |