 |
| filament: 189 phrases in 19 subjects |
| Agriculture | 2 |
| Antennas and waveguides | 2 |
| Astronomy | 6 |
| Chemistry | 1 |
| Coal | 1 |
| Earth sciences | 5 |
| Electronics | 55 |
| General | 5 |
| Health care | 2 |
| Industry | 24 |
| Labor law | 4 |
| Life sciences | 1 |
| Lighting other than cinema | 3 |
| Medical | 8 |
| Metallurgy | 2 |
| Natural sciences | 3 |
| Patents | 3 |
| Textile industry | 58 |
| Transport | 4 |