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| English thesaurus | |||
| |||
| ft | |||
| Filament: 1013 phrases in 46 subjects |
| Agriculture | 38 |
| Air defense | 1 |
| Animal husbandry | 23 |
| Architecture | 4 |
| Automobiles | 26 |
| Aviation | 9 |
| Business | 3 |
| Chemical fibers | 1 |
| Chemistry | 13 |
| Communications | 9 |
| Construction | 5 |
| Dermatology | 5 |
| Desert science | 3 |
| Drilling | 1 |
| Earth sciences | 2 |
| Economy | 1 |
| Electric machinery | 8 |
| Electronics | 65 |
| Engineering geology | 5 |
| Exhibitions | 1 |
| Fishery fishing industry | 1 |
| General | 26 |
| Genetics | 1 |
| Hydroelectric power stations | 3 |
| Ichthyology | 1 |
| Life sciences | 10 |
| Lighting other than cinema | 1 |
| Metallurgy | 60 |
| Microbiology | 1 |
| Molecular genetics | 3 |
| Nursing | 5 |
| Oil / petroleum | 25 |
| Otorhinolaryngology | 1 |
| Plastics | 86 |
| Polymers | 56 |
| Radio | 2 |
| Rail transport | 4 |
| Reproductive biology | 9 |
| Shipbuilding | 4 |
| Space | 26 |
| Sports | 7 |
| Superconductivity | 4 |
| Technology | 235 |
| Textile industry | 205 |
| Wind Energy | 13 |
| Zoology | 1 |