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confocal conic sections
meaning in Chinese
共焦二次曲线
Related Words
confocal
confocal quardrics
confocal hyperbola
confocal paraboloids
confocal cones
confocal ellipses
confocal parabolas
confocal hyperboloid
confocal ellipsoid
confocal laser
confocal cones
confocal congruences
confocal conics
confocal coordinates
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