Wind is Power Potential Quantified的英語作文
2016-11-07
Lastmonth,PresidentObamapledgednearlyhalfabilliondollarstowardthedevelopmentofsolarandgeothermalenergies.Butwhataboutwind?AteamofscientistsestimatesthatwindturbinesinthecontinentalU.S.couldproduce16ti...