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| risparmio energetico | |||
| risparmio di energia | |||
| economia energetica | |||
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| risparmio di energia | |||
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energy saving : 11 phrases in 7 subjects |
| Ecology | 2 |
| Economy | 1 |
| Electronics | 1 |
| Energy industry | 4 |
| General | 1 |
| Law | 1 |
| Natural sciences | 1 |
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