 |
| tunnel: 283 phrases in 33 subjects |
| Agriculture | 23 |
| Antennas and waveguides | 6 |
| Astronomy | 1 |
| Aviation | 1 |
| Chemistry | 18 |
| Communications | 3 |
| Construction | 8 |
| Earth sciences | 20 |
| Electronics | 27 |
| Environment | 1 |
| Finances | 5 |
| General | 4 |
| Industry | 6 |
| Labor law | 8 |
| Law | 19 |
| Life sciences | 2 |
| Magnetics | 1 |
| Materials science | 4 |
| Mechanic engineering | 2 |
| Medical | 13 |
| Metallurgy | 14 |
| Microsoft | 1 |
| Municipal planning | 2 |
| Natural sciences | 9 |
| Packaging | 5 |
| Patents | 1 |
| Physical sciences | 12 |
| Religion | 1 |
| Research and development | 1 |
| Technology | 2 |
| Textile industry | 2 |
| Thermal Energy | 1 |
| Transport | 60 |