| |||
| zone de combustion primaire (of a flame); zone interne (of a flame); cône interne (of a flame) | |||
|
inner zone : 3 phrases in 2 subjects |
| Astronomy | 2 |
| Aviation | 1 |
| |||
| zone de combustion primaire (of a flame); zone interne (of a flame); cône interne (of a flame) | |||
|
inner zone : 3 phrases in 2 subjects |
| Astronomy | 2 |
| Aviation | 1 |