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發表於:2018-08-28
Thiscarispoweredbysolarenergy.Andplantspoweredbygasemitfarlesscarbondioxidethanthosepoweredbydirtycoal.TheplanesarepoweredbyenginesmadebyRolls-Royce.alawnmowerpoweredbyag...
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發表於:2019-08-30
問題詳情:Earlierthismonth, asolar-powered(太陽能動力的)planetookofftotheskyforthefirsttime.Ithadpassedanimportanttestonthe waytotravelaroundtheworld. ...
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發表於:2018-11-13
Thebattery-powereddeviceusescuttingedgebionictechnologytoadapttoaperson'sstride,speedandthetypeofgroundandcanhelppreventstumbles.Itwasreportedthatthebattery-powereddevic...
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發表於:2018-04-21
Astheyoungbirdmatures,suchcontrolleddescentgraduallygiveswaytopoweredflight.Explanation:Anexampleofsolar-poweredflight,NASA'sHeliosaircraftflewalmostonehundredyearsafter...
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發表於:2018-08-08
Howisitpowered?Thelampispoweredbytwosmallbatteries.Theracingcarpowereddownthehomestraight.Wasshemovingthehydraulichosethatpoweredthebrush?Andinsteadofbeingpoweredbysmokyl...
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發表於:2018-07-13
Multi-functiondetectorforelectriccontrolsystemofbatterypoweredvehicleItisactuallyabatterypoweredatomizerwhichUSESaMotorolachip.ThebatterypoweredCagesprayisautonomousanden...
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發表於:2017-07-27
"A-bomb,H-bombandnuclear-poweredsubmarine"Thenuclear-poweredaircraftcarrierUSSRonaldReaganhasarrivedinJapantoassistreliefefforts.TheIndiangovernmentgavethenodtobuildano...
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發表於:2017-11-01
Atthesametime,itwillbeencouragedtousetheautomobilespoweredbycleanerfuels,fuelcellvehicles,electricity-poweredvehiclesandothertypesofloweremissionvehicle.Moreappropriately...