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sound-insulating
personnel shelter
| sound-insulating | |
| construct. | isolateur phonique |
| |||
| isolateur phonique | |||
| sound-insulating: 27 phrases in 7 subjects |
| Construction | 9 |
| Earth sciences | 2 |
| Environment | 1 |
| Health care | 10 |
| Industry | 2 |
| Natural resourses and wildlife conservation | 1 |
| Transport | 2 |