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| English thesaurus | |||
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| CNA | |||
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Coordinates : 571 phrases in 39 subjects |
| American usage, not spelling | 2 |
| Antennas and waveguides | 1 |
| Archaeology | 2 |
| Artificial intelligence | 7 |
| Astronomy | 21 |
| Automated equipment | 32 |
| Biology | 2 |
| British usage, not spelling | 2 |
| Business | 1 |
| Chemistry | 8 |
| Communications | 1 |
| Computers | 7 |
| Construction | 11 |
| Data processing | 4 |
| Earth sciences | 7 |
| Economics | 1 |
| Forestry | 1 |
| General | 30 |
| Geography | 1 |
| Hobbies and pastimes | 2 |
| Information technology | 25 |
| Law | 1 |
| Life sciences | 34 |
| Lighting other than cinema | 1 |
| Mathematics | 12 |
| Measuring instruments | 5 |
| Medical | 3 |
| Medical appliances | 2 |
| Microelectronics | 6 |
| Microsoft | 5 |
| Nanotechnology | 1 |
| Natural sciences | 2 |
| Optics branch of physics | 82 |
| Physics | 153 |
| Polygraphy | 1 |
| Scientific | 15 |
| Technology | 78 |
| Textile industry | 1 |
| Weapons and gunsmithing | 1 |