单词	hyperbolic paraboloid
释义	hyperbolic paraboloid noun : a saddle-shaped quadric surface whose sections by planes parallel to one coordinate plane are hyperbolas while those sections by planes parallel to the other two are parabolas if proper orientation of the coordinate axes is assumed Example Sentences Recent Examples on the Web Now this hyperbolic paraboloid roof (apparently that's the technical term) looks sharp enough to poke a hole in the Jolly Green Giant, and this corner is site of the Palm Springs Visitors Center. Christopher Reynolds, latimes.com, 19 Oct. 2017 Word History First Known Use 1842, in the meaning defined above
随便看	downhauls downhearted downheartedly downheartedness downheartednesses beating one's brains out about beating out beating reed beating the drum beating the drum (for) beating the drum for beating the pants off beating up beating up on beatings beatitude beatitudes beatlesesque Beatlesque beatless beatnik beatniks beatomest Beatrice beatrices

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