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pollution-free energy | |||
rest energy; self-energy | |||
self energy | |||
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clean energies |
énergie propre: 26 phrases in 10 subjects |
Communications | 1 |
Electronics | 1 |
Energy industry | 6 |
Environment | 2 |
Finances | 1 |
General | 2 |
High energy physics | 3 |
Name of organization | 8 |
Research and development | 1 |
United Nations | 1 |