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ap·o·them AHD[ăpʹə-thĕm'] D.J.[ˈæpəˌθem]K.K.[ˈæpəˌθɛm]n.Mathematics（名词）【数学】- The perpendicular distance from the center of a regular polygon to any of its sides.边心距：正多边形中心到其任意一条边的垂直距离
- apo- apo-
- Greek thema [something laid down] * see theme 希腊语 thema [规定的事物] * 参见 theme
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