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doubles : 1606 phrases in 141 subjects |
| Agriculture | 30 |
| American usage, not spelling | 2 |
| Amphibians and reptiles | 2 |
| Analytical chemistry | 20 |
| Animal husbandry | 3 |
| Antennas and waveguides | 13 |
| Astronomy | 26 |
| Athletics | 3 |
| Automated equipment | 17 |
| Aviation | 4 |
| Banking | 7 |
| Basketball | 1 |
| Biology | 3 |
| Biotechnology | 5 |
| Book binding | 3 |
| Botany | 1 |
| Boxing | 8 |
| British usage, not spelling | 4 |
| Building materials | 1 |
| Building structures | 1 |
| Cables and cable production | 2 |
| Chemistry | 33 |
| Chess | 4 |
| Cinematography | 3 |
| Coal | 5 |
| Communications | 12 |
| Computers | 44 |
| Construction | 174 |
| Criminal law | 1 |
| Cultural studies | 3 |
| Cycle sport | 2 |
| Dyalysis | 1 |
| Dyes | 1 |
| Earth sciences | 18 |
| Economics | 1 |
| Electric motors | 2 |
| Electric traction | 6 |
| Electrical engineering | 1 |
| Electricity generation | 1 |
| Electrochemistry | 5 |
| Electronics | 28 |
| Entomology | 3 |
| Equestrian sports | 2 |
| Fencing | 5 |
| Figurative | 2 |
| Finances | 13 |
| Fish farming pisciculture | 2 |
| Food industry | 4 |
| Food service and catering | 1 |
| Forestry | 5 |
| Gear train | 7 |
| General | 97 |
| Geology | 1 |
| Grammar | 2 |
| Gymnastics | 19 |
| Handball | 5 |
| Health care | 7 |
| High energy physics | 12 |
| Hobbies and pastimes | 1 |
| Horticulture | 6 |
| Humorous / Jocular | 1 |
| Ichthyology | 8 |
| Immigration and citizenship | 1 |
| Industry | 44 |
| Informal | 3 |
| Information technology | 4 |
| Insurance | 2 |
| International Monetary Fund | 7 |
| International trade | 2 |
| Judo | 7 |
| Kayaking | 3 |
| Laboratory equipment | 1 |
| Law | 7 |
| Life sciences | 6 |
| Linguistics | 7 |
| Loading equipment | 7 |
| Mammals | 1 |
| Marketing | 1 |
| Materials science | 4 |
| Mathematics | 4 |
| Measuring instruments | 20 |
| Mechanic engineering | 53 |
| Medical | 72 |
| Medical appliances | 54 |
| Metallurgy | 74 |
| Microbiology | 4 |
| Microsoft | 11 |
| Military | 1 |
| Milk production | 3 |
| Municipal planning | 1 |
| Name of organization | 1 |
| Natural resourses and wildlife conservation | 9 |
| Natural sciences | 11 |
| Nuclear physics | 14 |
| Oil / petroleum | 1 |
| Ornithology | 19 |
| Packaging | 35 |
| Paleontology | 3 |
| Patents | 3 |
| Pest control | 1 |
| Phonology | 7 |
| Physical sciences | 1 |
| Platform diving | 1 |
| Politics | 2 |
| Polymers | 4 |
| Power electronics | 1 |
| Power lines | 10 |
| Power system protection | 1 |
| Printed circuit boards | 4 |
| Radiation | 31 |
| Radio | 1 |
| Radiography | 5 |
| Rail transport | 2 |
| Road works | 1 |
| Rowing | 8 |
| Sailing | 2 |
| Scientific | 2 |
| Shooting sport | 2 |
| Speed skating | 8 |
| Sports | 9 |
| Statistics | 18 |
| Survey | 1 |
| Surveying | 1 |
| Swimming | 2 |
| Table tennis | 3 |
| Taxes | 10 |
| Technology | 118 |
| Telecommunications | 3 |
| Telegraphy | 2 |
| Tennis | 7 |
| Textile industry | 42 |
| Transport | 51 |
| Travel | 1 |
| United Nations | 2 |
| Vacuum tubes | 1 |
| Veterinary medicine | 1 |
| Virology | 3 |
| Volleyball | 1 |
| Water resources | 1 |
| Wood processing | 8 |
| Wrestling | 23 |