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- energy advantage 2
- energy and economic indicators 1
- energy and resource of saving 2
- energy approach 2
- energy audit 7
- energy audit of a locomotive 1
- energy balance 3
- energy branch 1
- energy certificate 5
- energy characteristics of channels 1
- energy characteristics of radio channels 1
- energy concept 1
- energy conservation 2
- energy conservation in usages 1
- energy conservation in usages 1
- energy consumption 18
- energy consumption optimization 1
- energy cost reduction 1
- energy costs 9
- energy efficiency 35