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Title: 準線距離倒數和的平均值是定值
Other Titles: The Mean of the Sum of the Inverse of the Distance between the Points on the Conics and the Directix is Constant
Authors: 柯明錦
Issue Date: Apr-2003
Publisher: 臺灣師範大學科學教育中心
National Taiwan Normal University Science Education Center
Other Identifiers: 058093D3-2E63-7445-9CF0-58AFB9EEA820
Appears in Collections:科學教育月刊

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