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confocal ellipses
meaning in English
共焦椭圆
Related Words
concentration ellipsis
confocal
confocal quardrics
confocal hyperbola
confocal paraboloids
confocal cones
confocal parabolas
confocal hyperboloid
confocal ellipsoid
confocal laser
confocal curve
confocal curves
confocal ellipsoid
confocal ends
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