 |
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| conservation de l'énergie; préservation de l'énergie | |||
| conservation d'énergie | |||
| conservation of energy: 6 phrases in 5 subjects |
| Astronomy | 1 |
| Chemistry | 1 |
| Construction | 1 |
| Environment | 1 |
| Name of organization | 2 |
|
| |||
| conservation de l'énergie; préservation de l'énergie | |||
| conservation d'énergie | |||
| conservation of energy: 6 phrases in 5 subjects |
| Astronomy | 1 |
| Chemistry | 1 |
| Construction | 1 |
| Environment | 1 |
| Name of organization | 2 |