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English
Magyar
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Energy saving
Energy saving
(4)
Technological sciences
>
Technology
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Energy technology
>
Rational use of energy
> Energy saving
Mi van a konnektor mögött?
mindentudas
Antal Tombor
Dr. György Fábri
Ada Ámon
11 years ago - 48:54
Van-e jövőjük a megújuló energiaforrásoknak – és
mindentudas
Attila Meskó
Dr. György Fábri
11 years ago - 31:02
Mindennapi energiánk
mindentudas
11 years ago - 50:08
Energiahatékonyság és menedzsment nagy
kifu
Attila Szarka
14 years ago - 30:27