单词	radius of curvature
释义	radius of curvature noun phrase : the reciprocal of the curvature of a curve Word History First Known Use 1716, in the meaning defined above
随便看	spuddle spuddy spuds spue spued spues spuffle spuilzied spuilzieing spuilzies spuing spule spule-bane spulebanes spulyied spulyieing spulyies spulzie spume spumed spumes spumescence spumescent spumier spumiest

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