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energie eoliană (7) |
turbine eoliene cu ax vertical (7) |
invenţii (5) |
inventions (3) |
wind energy conversion (3) |
vertical axis wind turbines (2) |
wind energy (2) |
blades (1) |
brevete de invenţie (1) |
electricity (1) |
Now showing items 1-10 of 7