Mu myaka yashize, ingufu z'isi ku isi ziyongereye cyane.Gukenera ingufu zishobora kwihutirwa kuruta mbere hose.Ingufu z'umuyaga, zizwi nka imwe mu zitanga ingufu zishobora kongera ingufu, zateye imbere vuba mu myaka yashize.Amashanyarazi yumuyaga, cyangwa turbine yumuyaga, yerekanye ubushobozi kuri ...
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