| |||
| conduit détourné pour l'évacuation d'air (vertical ventilation duct, parallel to the main exhaust duct); canal parallèle (vertical ventilation duct, parallel to the main exhaust duct) | |||
|
parallel : 22 phrases in 12 subjects |
| Astronomy | 2 |
| Commerce | 1 |
| Computers | 2 |
| Earth sciences | 1 |
| Electronics | 3 |
| Finances | 1 |
| General | 2 |
| Information technology | 1 |
| International Monetary Fund | 1 |
| Mechanic engineering | 2 |
| Technology | 2 |
| Transport | 4 |