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| à ciel ouvert | |||
| exploitation à ciel ouvert | |||
| English thesaurus | |||
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| open burning and open detonation (OBOD) | |||
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open-pit : 11 phrases in 6 subjects |
| Agriculture | 3 |
| Coal | 1 |
| Construction | 3 |
| Mechanic engineering | 1 |
| Natural resourses and wildlife conservation | 1 |
| United Nations | 2 |