Answer: turbines

AnswerCrossword Clue
TURBINESRotary engines.
TURBINESSome engines
TURBINESCertain engines
TURBINESSome are wind-powered
TURBINESRotary engines
turbinesA machine for producing continuous power in which a wheel or rotor, typically fitted with vanes, is made to revolve by a fast-moving flow of water, steam, gas, air, or other fluid
turbinesTURBINE, a type of engine, also TURBO