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envelopes : 155 phrases in 41 subjects |
| Agriculture | 1 |
| Astronomy | 6 |
| Automated equipment | 4 |
| Communications | 16 |
| Computers | 4 |
| Construction | 4 |
| Corporate governance | 2 |
| Earth sciences | 2 |
| Electronics | 20 |
| Energy industry | 1 |
| Environment | 1 |
| Finances | 1 |
| Food industry | 1 |
| General | 30 |
| Genetics | 2 |
| Geology | 1 |
| Health care | 2 |
| High energy physics | 2 |
| Hobbies and pastimes | 2 |
| Industry | 1 |
| Information technology | 4 |
| International Monetary Fund | 3 |
| Law | 1 |
| Mathematics | 1 |
| Measuring instruments | 1 |
| Medical | 3 |
| Medical appliances | 1 |
| Metallurgy | 2 |
| Microsoft | 6 |
| Natural resourses and wildlife conservation | 1 |
| Packaging | 1 |
| Patents | 6 |
| Piezoelectric crystals | 2 |
| Radiation | 1 |
| Radio | 1 |
| Research and development | 1 |
| Scientific | 1 |
| Technology | 1 |
| Telecommunications | 2 |
| Transport | 8 |
| United Nations | 5 |