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tours de forage | |||
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plate-forme de forage; tour de forage | |||
machine de forage | |||
outils de forage | |||
installation de forage |
drilling rigs : 23 phrases in 8 subjects |
Coal | 1 |
Construction | 4 |
Energy industry | 1 |
Industry | 2 |
Metallurgy | 2 |
Natural resourses and wildlife conservation | 1 |
Oil / petroleum | 11 |
United Nations | 1 |