单词	crank arm operator
释义	crank arm operator roto operator roto operator A gear-driven device, turned with a small crank handle or knob; used to open and close jalousies, awning windows, casement windows, and fanlights.
随便看	fedor kuznetsov fedor laskovskii fedor leontevich shaklovityi fedor leontyevich argunov fedor levitskii fedor lidval fedor litke fedor lopukhov fedor lukich kovalev fedor luzhin fedor lvov folksonomy folks on spokes folk speech folkstone folk story folksy folk tale folk-tale folktale folk tales folktales folktronica folk truism folk versification, russian

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