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| 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) | |||
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parallel : 15 phrases in 9 subjects |
| Commerce | 1 |
| Communications | 2 |
| Earth sciences | 1 |
| Electronics | 2 |
| Finances | 1 |
| General | 2 |
| Information technology | 1 |
| Mechanic engineering | 2 |
| Transport | 3 |