单词	spiral of Archimedes
释义	spiral of Archimedes noun phrase spiral of Ar·​chi·​me·​des -ˌär-kə-ˈmē-dēz  : a plane curve that is generated by a point moving away from or toward a fixed point at a constant rate while the radius vector from the fixed point rotates at a constant rate and that has the equation ρ = a θ in polar coordinates Word History Etymology Archimedes First Known Use circa 1856, in the meaning defined above
随便看	crankcases cranked cranked (up) cranked out cranked up cranker crankery crankest crankier crankiest crankilier crankiliest crankily crankiness crankinesses cranking cranking (up) cranking out cranking up crankish crankism crankle crankled crankles crankless

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