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| air extérieur non vicié; air neuf non vicié | |||
| air extérieur; air frais; air neuf | |||
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buitenlucht : 7 phrases in 6 subjects |
| Construction | 1 |
| Environment | 1 |
| Materials science | 1 |
| Mechanic engineering | 1 |
| Municipal planning | 2 |
| Transport | 1 |
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