 |
| |||
| tubes à décharges électriques autres que pour l'éclairage | |||
| electric: 55 phrases in 14 subjects |
| Agriculture | 4 |
| Earth sciences | 5 |
| Electronics | 9 |
| General | 3 |
| Health care | 4 |
| Ichthyology | 7 |
| Mechanic engineering | 1 |
| Medical | 1 |
| Metallurgy | 2 |
| Patents | 5 |
| Politics | 1 |
| Statistics | 1 |
| Technology | 1 |
| Transport | 11 |