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| méthode d'exploitation; mode d'abattage; méthode d'abattage | |||
| méthode d'extraction (mining) | |||
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system of working : 15 phrases in 6 subjects |
| Coal | 1 |
| Construction | 2 |
| General | 4 |
| Law | 1 |
| Name of organization | 6 |
| United Nations | 1 |
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