 |
| raio: 578 phrases in 38 subjects |
| Agriculture | 10 |
| Antennas and waveguides | 6 |
| Chemistry | 8 |
| Communications | 26 |
| Construction | 2 |
| Cultural studies | 6 |
| Earth sciences | 52 |
| Electronics | 95 |
| Environment | 9 |
| Forestry | 2 |
| General | 51 |
| Health care | 25 |
| Immigration and citizenship | 1 |
| Industry | 24 |
| Information technology | 14 |
| Labor law | 4 |
| Life sciences | 21 |
| Mathematics | 1 |
| Mechanic engineering | 16 |
| Medical | 18 |
| Metallurgy | 11 |
| Microsoft | 1 |
| Municipal planning | 2 |
| Natural resourses and wildlife conservation | 3 |
| Natural sciences | 46 |
| Nuclear and fusion power | 1 |
| Nuclear physics | 1 |
| Patents | 1 |
| Physical sciences | 15 |
| Radio | 1 |
| Radiology | 22 |
| Scientific | 2 |
| Sound recording | 2 |
| Superconductivity | 2 |
| Taxes | 1 |
| Technology | 28 |
| Transport | 43 |
| Vacuum tubes | 5 |