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| air exhaust; vent hole | |||
| scarico d' aria: 13 phrases in 8 subjects |
| Earth sciences | 1 |
| Electronics | 1 |
| Environment | 3 |
| General | 3 |
| Mechanic engineering | 2 |
| Medical | 1 |
| Municipal planning | 1 |
| Transport | 1 |
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