 |
| tunnel: 216 phrases in 28 subjects |
| Agriculture | 16 |
| Antennas and waveguides | 5 |
| Aviation | 1 |
| Chemistry | 23 |
| Communications | 1 |
| Computer networks | 1 |
| Construction | 3 |
| Earth sciences | 18 |
| Electronics | 27 |
| Finances | 5 |
| Glass production | 1 |
| Hydrology | 1 |
| Industry | 8 |
| Life sciences | 3 |
| Magnetics | 1 |
| Materials science | 2 |
| Mechanic engineering | 2 |
| Medical | 6 |
| Metallurgy | 6 |
| Microsoft | 2 |
| Natural sciences | 8 |
| Packaging | 6 |
| Patents | 1 |
| Physical sciences | 15 |
| Superconductivity | 1 |
| Technology | 2 |
| Textile industry | 2 |
| Transport | 49 |