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| formes d'énergie primaire; sources d'énergie | |||
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| source énergétique | |||
| source d'énergie | |||
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sources of energy : 73 phrases in 12 subjects |
| Coal | 1 |
| Communications | 2 |
| Economics | 1 |
| Electronics | 3 |
| Energy industry | 22 |
| Environment | 9 |
| General | 13 |
| International Monetary Fund | 1 |
| Name of organization | 14 |
| Natural sciences | 1 |
| Transport | 1 |
| United Nations | 5 |