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third octave
| filter
| third octave | |
| tech. el. | tiers d'octave |
| filter | |
| gen. | filtre |
| chem. | filtrer |
| el. | filtre de fréquence; filtre côté courant alternatif |
| environ. | tamis |
| fin. scient. | instrument de lissage |
| tech. el. | filtre d'onde |
| transp. coal. | microfiltre de sécurité |
| |||
| tiers d'octave | |||
| third octave: 16 phrases in 4 subjects |
| Communications | 7 |
| Earth sciences | 1 |
| Health care | 2 |
| Technology | 6 |