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| English thesaurus | |||
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| FIDO | |||
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Field : 860 phrases in 41 subjects |
| Airports and air traffic control | 2 |
| American usage, not spelling | 1 |
| Aviation | 13 |
| Banking | 5 |
| Botany | 1 |
| Chemistry | 61 |
| Computers | 16 |
| Construction | 9 |
| Crystallography | 2 |
| Economics | 5 |
| Electronics | 3 |
| Figurative | 4 |
| General | 17 |
| Geophysics | 3 |
| Hydrology | 1 |
| Information technology | 1 |
| Laboratory equipment | 2 |
| Law | 105 |
| Mechanic engineering | 1 |
| Medical | 1 |
| Microsoft | 27 |
| Military | 44 |
| Mining | 1 |
| Non-destructive testing | 2 |
| Oil / petroleum | 232 |
| Optics branch of physics | 63 |
| Photography | 71 |
| Polygraphy | 11 |
| Proper and figurative | 1 |
| Quantum electronics | 1 |
| Quantum mechanics | 3 |
| Road traffic | 2 |
| Road works | 2 |
| Slang | 2 |
| Soil science | 1 |
| Spectroscopy | 2 |
| Sports | 1 |
| Surveying | 2 |
| Technology | 115 |
| Telephony | 1 |
| Television | 23 |