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单词 hyperbola
释义 hyperbola/haiˈpɜ:bələ/n. (pl. hyperbolas or hyperbolae /-li:/) Geom. the plane curve of two equal branches, produced when a cone is cut by a plane that makes a larger angle with the base than the side of the cone (cf. 参见 ELLIPSE) 【几】双曲线 [modern Latin from Greek huperbolē ‘excess’ (as HYPER-, ballō ‘to throw’)]
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