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| energieeffizient | |||
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| kraftsparend | |||
| energiesparend; Energiespar- n | |||
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energy-efficient : 19 phrases in 7 subjects |
| Construction | 1 |
| Ecology | 1 |
| Education | 1 |
| Energy industry | 8 |
| Environment | 3 |
| Natural resourses and wildlife conservation | 4 |
| Research and development | 1 |